Engineering Building Kits
76 resultsEncourage an early love of STEM learning with this one-of-a-kind City Building Set. Your little engineers can create their own skyscrapers, cranes, bridges and more with 89 easy-to-assemble pieces. Use the included activity cards to complete design challenges, or create your own city. It’s a unique way to challenge logic, problem solving, and engineering skills..Learning styles: tactile, visual.Skill development: problem solving, following directions, fine motor skills, eye-hand coordination, sequential thought, critical thinking, spatial relationships, creativity, early engineering.Includes 100-piece set.Activity cards.Platform measures 4.25" x 4.25".Ages: 5+.Grade: K +
Design and engineer the tree house of your dreams with this one-of-a-kind building set. Use the included activity cards to complete engineering challenges. Build railings, platforms, trees, and then use your problem solving skills to re-engineer your design. Kids will love building their tree house—parents will love that they’re actually building critical thinking and STEM skills..Learning styles: tactile, visual.Skill development: problem solving, following directions, fine motor skills, eye-hand coordination, sequential thought, critical thinking, spatial relationships, creativity, early engineering.Includes 52-piece set activity cards.Platform measures 5.5" x 4.5".Ages: 5+.Grade: K +
Build ramps, build jumps and then send your skater flying with the Skate Park Building Set. This unique engineering and design challenge helps sharpen critical thinking, problem solving, and STEM skills as little ones create the skate park of their dreams. Engineer it and then engineer it again with the included activity cards that help guide the process..Learning Styles: tactile, visual.Skill development: problem solving, following directions, fine motor skills, eye-hand coordination, sequential thought, critical thinking, spatial relationships, creativity, early engineering.Includes 43-piece set activity cards.Longest ramp measures 10" x 2".Ages: 5+.Grade: K +
Kids will develop early STEM and STEAM skills by designing and building their own playground sets. Guide includes reproducible worksheets..Ages: 5+.13.9" x 10.1" x 3.1".Kids will develop early STEM and STEAM skills by designing and building their own playground sets.A great resources for integrating Science, Technology, Engineering, Arts and Math (STEAM) into your classroom
Let the challenges begin! Kids develop STEM skills fit for kings and queens every time they build with the Engineering & Design Castle Building Set from Learning Resources. This 123-piece STEM building set's easy-to-handle pieces support multiple build-it-yourself castle designs - kids can add a bridge, stack up a tall turret, or design an open courtyard as they bring their creations to life! The Engineering & Design Castle Building Set also comes with a set of 10 double-sided Activity Cards filled with interactive challenges designed to boost critical thinking, problem-solving, and early engineering skills - can you lower the drawbridge, build a working catapult, or trigger the surprise trapdoor..This 123-piece castle building set is suitable for kids aged five years and up.Parts of set come in assorted colors and made of plastic.Set includes: 10 double-sided activity cards with interactive challenges and two knight figures and a trusty horse.Develops critical thinking, problem-solving, and early engineering skills.Contains small parts, not suitable for children under three years old
The Trebuchet 3D Wooden STEM Construction Kit is perfect for assembling and customizing at school or home. This unique creation draws inspiration from medieval siege artillery, bringing history to life in a fun and educational way. With adjustable rubber-band tension, you can test different distances and challenge your engineering skills. This hands-on experience will not only provide hours of entertainment but also foster creativity and problem-solving abilities. Made with sustainable materials, our 3D model is designed to be environmentally friendly, ensuring a guilt-free learning experience. Get ready to embark on an exciting journey through time with our customizable and eco-conscious siege artillery model..Eco-friendly 3D STEM model to assemble and customize at school or home..14+ years.STEM Building Kit.Model includes candle wax for gears, sand paper and rubber bands (not all kits, included when relevant). Very sturdy construction..No glue and no batteries needed.Eco-friendly sustainable material made of plywood. No messy glue required..All inclusive boxes, self assembly..Very high precision laser-cut plywood with amazing details..Clear colorful step-by-step assembly instructions.
Stimulate your child's developing mind and channel their creativity with Geomag MASTERBOX PRO-L 388 piece magnetic construction set. Your little engineer-in-the-making will gain the tools to build architecturally sound structures like a bridge using panels, magnetic rods, and non-magnetic steel spheres. With a little imagination, they can build something more fantastical and abstract! This STEM.org certified toy is designed to help children develop hand/eye coordination, motor skills, problem solving, and visualization through the science of magnetic construction. PRO L magnets are 30%+ stronger than our classic line allowing for larger creations. STEM.org certified toy that helps in the development of creativity, fine motor skills in addition to stimulating imaginative play and curiosity through the science of magnetic construction..Magnetic construction platform that helps kids grasp science concepts in magnetism and magnetic polarities.Helps kids gain knowledge in engineering concepts by creating a remarkable number of structures and configurations through trial and error.Designed to help stimulate children's creativity by allowing for expanded play possibilities.Promotes hands-on learning and offers a creative approach to problem-solving by building 2D shapes, 3D shapes and graduating to larger and more complex structures.STEM.org authenticated
Snapo blocks boast an extraordinary 3D connective feature, allowing them to connect on all six sides. This innovative design opens up infinite creative avenues, enabling children to explore, design, and build without limitations. What sets Snapo apart is its patented Snap Technology, a marvel that allows the blocks not only to connect but also to slide and rotate in reference to one another. This exceptional movement ability empowers young minds to create structures that can evolve, adjust, and even morph into entirely new forms, sparking endless inspiration and innovation. Snapo is more than just a building toy; it's a doorway to a world where imagination knows no bounds. The ability of Snapo blocks to move and transform in various ways provides a dynamic and interactive play experience. With Snapo, children can dream up intricate designs, build, play, and then reinvent their creations, all in one seamless process. The versatility of Snapo blocks encourages children to think beyond conventional building, allowing them to engage in imaginative adventures. What sets Snapo apart (besides being 100% MADE IN USA) is its commitment to sustainability..Snapo blocks feature our patented snap technology. Snapo blocks connect on all 6 sides, slide vertically and can rotate!.This kit includes 300 pieces: Standard Blocks, Wheels, Propellors, Specialty Blocks (Axels, slopes, etc.).Snapo blocks provide both physical and auditory feedback when connected. Helps increase child's engagement and play value!.All Snapo blocks are BPA-free, non-magnetic, washable, and safety tested..We are 100% recyclable, produced in a near zero waste facility, and contain on average of at least 20% recycled material.All Snapo blocks are 100% made in USA in our Reading, PA manufacturing facility..Snapo's exceptional movement ability empowers young minds to create structures that can evolve, adjust, and even morph into entirely new forms, sparking endless inspiration and innovation.
Explore the fascinating world of gears with our mechanical educational kit! This tabletop model showcases an epicyclic gear train, also known as planetary gears, which are commonly used in speed reducers to slow down motors and increase torque. Perfect for teaching students about the inner workings of mechanical pencil sharpeners, this kit is an ideal STEAM project that will engage and educate young minds. Get ready to assemble and learn how gears work in a fun and interactive way!.Eco-friendly 3D STEM model to assemble and customize at school or home..14+ years.STEM Building Kit.Model includes candle wax for gears, sand paper and rubber bands (not all kits, included when relevant). Very sturdy construction..No glue and no batteries needed.Eco-friendly sustainable material made of plywood. No messy glue required..All inclusive boxes, self assembly..Very high precision laser-cut plywood with amazing details..Clear colorful step-by-step assembly instructions.
Geomag Pro-L is the evolution of the classic magnetic construction system. Designed for those who love challenges, the Pro-L line, thanks to the greater strength of its magnets, allows you to create ever more complex models and structures, giving greater scope to your imagination. The visible polarity indicator on the rods means you get to understand the true potential of magnetism and can build constructions that allow you to push to the edge of the laws of physics with greater ease. Geomag PRO-L sets will stimulate your child's developing mind and channel their creativity. Your little engineer-in-the-making will be given the tools to build architecturally sound structures like a bridge using panels, magnetic rods, and non-magnetic steel spheres. With a little imagination, they can build something more fantastical and abstract! This STEM.org certified toy is designed to help children develop hand/eye coordination, motor skills, problem solving, and visualization through the science of magnetic construction. PRO L magnets are 30%+ stronger than our classic line allowing for larger creations. STEM.org certified toy that helps in the development of creativity, fine motor skills in addition to stimulating imaginative play and curiosity through the science of magnetic construction..Magnetic construction platform that helps kids grasp science concepts in magnetism and magnetic polarities.8+ years.Working as a unit enhances problem-solving skills, builds communication knowhow, promotes self-esteem and encourages a child's overall learning development..174 Pieces (Magnetic Rods, Steel Spheres, Plastic Panels).Helps kids gain knowledge in engineering concepts by creating a remarkable number of structures and configurations through trial and error.PP colored plastic with Nd-Fe-B magnets zinc coated.Promotes hands-on learning and offers a creative approach to problem-solving by building 2D shapes, 3D shapes and graduating to larger and more complex structures.Designed to help stimulate children's creativity by allowing for expanded play possibilities
This Learning Resources STEM Explorers bridge builders set offers your children a learning adventure! Follow along with this set's challenge guide to design, construct, and test bridges and buildings that demonstrate the basic STEM principles of structural engineering. The set of 77 pieces includes bridge platforms, columns, pulleys, a testing truck, and more. From suspension bridges to beam bridges and every structure in between, this STEM kit's challenges introduce kids to the fundamental principles of structural engineering..From suspension bridges to beam bridges and every structure in between, this set challenges introduce kids to the fundamental principles of structural engineering.Specially designed with little ones in mind, this toy helps kids as young as five years old build essential early engineering skills.Build critical thinking skills: as they test and tweak their designs, kids will also use this STEM building toy to build essential critical thinking and problem solving skills.Box contains: 77 pieces, including bridge platforms, columns, pulleys, testing truck, and more.Solve STEM challenges: kids can design, construct, and test their own bridges and towers as they solve this STEM building toy's nine STEM challenges.Give the gift of learning: whether you're shopping for holidays, birthdays, or just because, the brand's award-winning educational toys help you discover new learning fun every time you give a gift.Warning: choking hazard; due to small parts, not recommended for children under three.Warning: strangulation hazard; due to long cord, not recommended for children under three
Made with recycled plastic, Geomag Mechanics Gravity Vertical Motor Recycled 183 piece construction platform combines the force of magnetism with mechanical construction. Geomag Mechanics Gravity Vertical Motor Recycled 183 pieces stimulate children's creativity, inventiveness and a hands-on approach to problem-solving and will introduce the concepts of an interactive gravity moto. In addition to magnetic rods and steel spheres, Geomag Mechanics Gravity adds mechanical elements within the construction platform that allows for expanded play possibilities. STEM.org authenticated toy that helps in the development of creativity, fine motor skills in addition to stimulating imaginative play and curiosity through the science of magnetic construction..Magnetic construction platform that combines magnetism and gravity with mechanical construction.Build an interactive gravity motor.Designed to help stimulate children's creativity by allowing for expanded play possibilities.Promotes hands-on learning and offers a creative approach to problem-solving.STEM.org authenticated
Made with 100% recycled plastic, Geomag Supercolor Panels 35 pieces use powerful magnetic rods, steel spheres and panels, allowing children to create unlimited structures. Panels provide a way to create rigidity in every structure thus allowing taller and larger structure to be built. Great introduction to STEM activities. Designed to help stimulate children's creativity by allowing for expanded play possibilities and promotes hands-on learning by offering a creative approach to problem-solving. Helps in the development of fine motor skills with endless construction possibilities..100% RECYCLED PLASTIC: GEOMAG's magnetic building toys for kids are the industry leader of magnetic building play for kids and adults. Every magnetic building set includes a wide array of colorful magnetic sticks, panels and balls made from recycled plastic..KIDS LEARN THROUGH OPEN-ENDED CREATIVE PLAY: Geomag STEM and STEAM building toys are kid magnets! Whether our building games are magnets for toddlers or educational toys for 8 year-olds, these magnetic sticks, panels and balls offer fun for all ages..COLORFUL MAGNETS CLICK INTO ENDLESS COMBINATIONS: Play allows kids and adults to create and learn together! Geomag easy, interlocking magnetic building games are educational toys that teach STEM concepts of magnetism, geometry, gravity, and engineering..SUSTAINABLE & SWISS MADE: These magnet building sets are Swiss toy innovation at its finest. Invest in superior quality and design to ensure years of educational building fun. Super strong positive and negative magnets in each colored magnetic rod core..MAGNET TOYS GIFT SET: This eco-friendly educational toy set is a 35 Piece Set of magnetic sticks/rods, panels - made using 100% recycled plastic and includes a portable storage box and instruction booklet
Teach children early engineering skills with this mix-and-match toy that can be built into 3 different vehicles. Creates a car, airplane, and tugboat (one at a time)..Ages: 2+.11.5" x 10.1" x 4.2".Teach children early engineering skills with this mix-and-match toy that can be built into 3 different vehicles
Put your class’s STEM skills to the ultimate engineering test! Students design, construct, and test their bridges and towers as they solve the STEM challenges found in the STEM Explorers Bridge Builders Classroom Set from Learning Resources. Inspired by the real-world structural engineering in our Toy of the Year nominee, this classroom STEM building toy’s STEM challenges help students learn the fundamental design principles of all kinds of bridges—use real-world techniques to build and test your own beam bridge, suspension bridge, and more! As they test and tweak their STEM kit creations, students will also hone the critical thinking and problem-solving skills that are essential to STEM success. Working together in small groups, students will also build the collaboration skills that help them in and out of class! Science. Technology. Engineering. Mathematics. STEM help us bring the future home today. That's why Learning Resources is dedicated to helping kids get an early start on these essential skills. From building sets grounded in the fundamentals of engineering to coding robots designed for kids as young as 4, our award-winning educational toys unlock the 21st-century STEM skills they need to succeed today and tomorrow. Made from durable, BPA-free plastic, our STEM toys for kids are ready for years of learning fun at home or in the classroom. We're Learning Resources, and learning is where we play. With nearly 40 years of experience, our family-owned company’s mission is founded on offering kids educational toys for infinite inspiration to succeed in school and beyond. From ABCs and 123s to fine motor and STEM, our award-winning educational toys help kids discover countless ways to develop a lifelong love of learning while they build new skills. In 2022, Learning Resources expanded this dedication to learning and enrichment with Brightkins, a line of interactive pet training tools and toys that help families discover bright ways for pets to play! Learn more about how we turn a childhood love of play into a lifelong love of learning with a visit to our brand store today..Solve STEM Challenges: Students design, construct, and test their own bridges and towers as they solve this STEM building toy’s STEM challenges!.Inspired By Real-World Engineering: From suspension bridges to beam bridges and every structure in between, this STEM kit’s challenges introduce students to the principles of structural engineering..Build Critical Thinking Skills: As they test and tweak their designs, students will also use this STEM building toy to build essential critical thinking and problem-solving skills.
Explore the wonders of physics and engineering with our Kinetic Globe 3D Wooden STEM Construction Kit! Ideal for students, engineers, teachers, or anyone with a curious mind, this kit features inner and outer rotating spheres that are set in motion by a wind-up rubber-band engine. Watch as the spheres move around the axis in opposite directions, creating a mesmerizing and educational display of kinetic energy. This hands-on kit is not only fun to build, but also a great way to learn about mechanics, motion, and design. Perfect for STEM enthusiasts of all ages!.Eco-friendly 3D STEM model to assemble and customize at school or home..14+ years.STEM Building Kit.Model includes candle wax for gears, sand paper and rubber bands (not all kits, included when relevant). Very sturdy construction..No glue and no batteries needed.Eco-friendly sustainable material made of plywood. No messy glue required..Clear colorful step-by-step assembly instructions..All inclusive boxes, self assembly..Very high precision laser-cut plywood with amazing details.
Made with 100% recycled plastic, Geomag Supercolor Panels 52 pieces use powerful magnetic rods, steel spheres and panels, allowing children to create unlimited structures. Panels provide a way to create rigidity in every structure thus allowing taller and larger structure to be built. Great introduction to STEM activities. Designed to help stimulate children's creativity by allowing for expanded play possibilities and promotes hands-on learning by offering a creative approach to problem-solving. Helps in the development of fine motor skills with endless construction possibilities..100% RECYCLED PLASTIC: GEOMAG's magnetic building toys for kids are the industry leader of magnetic building play for kids and adults. Every magnetic building set includes a wide array of colorful magnetic sticks, panels and balls made from recycled plastic..KIDS LEARN THROUGH OPEN-ENDED CREATIVE PLAY: Geomag STEM and STEAM building toys are kid magnets! Whether our building games are magnets for toddlers or educational toys for 8 year-olds, these magnetic sticks, panels and balls offer fun for all ages..COLORFUL MAGNETS CLICK INTO ENDLESS COMBINATIONS: Play allows kids and adults to create and learn together! Geomag easy, interlocking magnetic building games are educational toys that teach STEM concepts of magnetism, geometry, gravity, and engineering..SUSTAINABLE & SWISS MADE: These magnet building sets are Swiss toy innovation at its finest. Invest in superior quality and design to ensure years of educational building fun. Super strong positive and negative magnets in each colored magnetic rod core..MAGNET TOYS GIFT SET: This eco-friendly educational toy set is a 52 Piece Set of magnetic sticks/rods, panels - made using 100% recycled plastic and includes a portable storage box and instruction booklet
Dive into history with this mechanical wind-up 3D-puzzle of Leonardo Da Vinci's fighting vehicle, a replica of the tank designed in 1487. This intricate model features 360° canons, sloped armor for increased stopping power, a rotating rubber-band mechanism, and wooden gears inspired by the original invention. With a stop & go lever, this historical masterpiece is a must-have for any history enthusiast or puzzle lover..Eco-friendly 3D STEM model to assemble and customize at school or home..14+ years.STEM Building Kit.Model includes candle wax for gears, sand paper and rubber bands (not all kits, included when relevant). Very sturdy construction..No glue and no batteries needed.Eco-friendly sustainable material made of plywood. No messy glue required..Very high precision laser-cut plywood with amazing details..All inclusive boxes, self assembly..Clear colorful step-by-step assembly instructions.
Snapo blocks boast an extraordinary 3D connective feature, allowing them to connect on all six sides. This innovative design opens up infinite creative avenues, enabling children to explore, design, and build without limitations. What sets Snapo apart is its patented Snap Technology, a marvel that allows the blocks not only to connect but also to slide and rotate in reference to one another. This exceptional movement ability empowers young minds to create structures that can evolve, adjust, and even morph into entirely new forms, sparking endless inspiration and innovation. Snapo is more than just a building toy; it's a doorway to a world where imagination knows no bounds. The ability of Snapo blocks to move and transform in various ways provides a dynamic and interactive play experience. With Snapo, children can dream up intricate designs, build, play, and then reinvent their creations, all in one seamless process. The versatility of Snapo blocks encourages children to think beyond conventional building, allowing them to engage in imaginative adventures. What sets Snapo apart (besides being 100% MADE IN USA) is its commitment to sustainability..Snapo blocks feature our patented snap technology. Snapo blocks connect on all 6 sides, slide vertically and can rotate!.This kit includes 200 pieces: Standard Blocks, Wheels, Propellors, Specialty Blocks (Axels, slopes, etc.).Snapo blocks provide both physical and auditory feedback when connected. Helps increase child's engagement and play value!.All Snapo blocks are BPA-free, non-magnetic, washable, and safety tested..We are 100% recyclable, produced in a near zero waste facility, and contain on average of at least 20% recycled material.All Snapo blocks are 100% made in USA in our Reading, PA manufacturing facility..Snapo's exceptional movement ability empowers young minds to create structures that can evolve, adjust, and even morph into entirely new forms, sparking endless inspiration and innovation.
Made with recycled plastic, Geomag Mechanics Gravity Loops & Turns Recycled 130 piece construction platform combines the force of magnetism with mechanical construction. Geomag Mechanics Gravity Loops & Turns Recycled 130 pieces stimulate children's creativity, inventiveness and a hands-on approach to problem-solving and will introduce the concepts of an interactive magnetic marble run and a cannon mechanism. In addition to magnetic rods and steel spheres, Geomag Mechanics Gravity adds mechanical elements within the construction platform that allows for expanded play possibilities. STEM.org authenticated toy that helps in the development of creativity, fine motor skills in addition to stimulating imaginative play and curiosity through the science of magnetic construction..Magnetic construction platform that combines magnetism and gravity with mechanical construction.Build an interactive marble run and magnetic cannon.Designed to help stimulate children's creativity by allowing for expanded play possibilities.Promotes hands-on learning and offers a creative approach to problem-solving.STEM.org authenticated
Budding engineers become robot designers and customize their own robots using interchangeable pieces and real working tools. This Educational Insights Design & Drill Robot Workshop designer set includes a kid-friendly drill, handheld screwdriver, 32 colorful bolts, 26 interchangeable pieces, four accessories, seven gears, and a sticker sheet..Budding engineers become robot designers and customize their own robots using interchangeable pieces and real working tools included in this designer set.Recommended for children ages three and up.Helps build early engineering, fine motor skills, and imaginative play.Includes: kid-friendly drill, handheld screwdriver, 32 colorful bolts, 26 interchangeable pieces, four accessories, seven gears, and sticker sheet.Requires two AAA batteries (not included)
Made with 100% recycled plastic, Geomag Supercolor Panels 78 pieces use powerful magnetic rods, steel spheres and panels, allowing children to create unlimited structures. Panels provide a way to create rigidity in every structure thus allowing taller and larger structure to be built. Great introduction to STEM activities. Designed to help stimulate children's creativity by allowing for expanded play possibilities and promotes hands-on learning by offering a creative approach to problem-solving. Helps in the development of fine motor skills with endless construction possibilities..100% RECYCLED PLASTIC: GEOMAG's magnetic building toys for kids are the industry leader of magnetic building play for kids and adults. Every magnetic building set includes a wide array of colorful magnetic sticks, panels and balls made from recycled plastic..KIDS LEARN THROUGH OPEN-ENDED CREATIVE PLAY: Geomag STEM and STEAM building toys are kid magnets! Whether our building games are magnets for toddlers or educational toys for 8 year-olds, these magnetic sticks, panels and balls offer fun for all ages..COLORFUL MAGNETS CLICK INTO ENDLESS COMBINATIONS: Play allows kids and adults to create and learn together! Geomag easy, interlocking magnetic building games are educational toys that teach STEM concepts of magnetism, geometry, gravity, and engineering..SUSTAINABLE & SWISS MADE: These magnet building sets are Swiss toy innovation at its finest. Invest in superior quality and design to ensure years of educational building fun. Super strong positive and negative magnets in each colored magnetic rod core..MAGNET TOYS GIFT SET: This eco-friendly educational toy set is a 78 Piece Set of magnetic sticks/rods, panels - made using 100% recycled plastic and includes a portable storage box and instruction booklet
Discover the beauty and engineering marvel of the London Tower Bridge with this intricately designed 3D model kit. Featuring functioning wooden gears for an interactive experience, this kit is perfect for those 14 and older who love building models. Add this iconic landmark to your collection and explore other famous monuments in our series for a truly immersive experience..Eco-friendly 3D STEM model to assemble and customize at school or home..14+ years.STEM Building Kit.All inclusive boxes, self assembly..No glue and no batteries needed.Wooden Puzzle with very high precision plywood pieces..No messy glue required..Clear colorful step-by-step assembly instructions..Very sturdy construction.
What kind of robots can you dream up? Kids build their own twisting, turning STEM creations with the mix-and-match pieces of the Learning Resources 1-2-3 Build It! Robot Factory. Sized just right for little hands, the build-it-yourself toy's chunky plastic pieces are ready to help kids design, build, and tinker with their own robot squad during open-ended play sessions. Build tall bots with squiggly green legs, add a few eyes to help your creation see, or snap on a propeller that really spins. 1-2-3 Build It! Robot Factory also comes with an Activity Guide featuring recommended builds, which helps kids learn essential STEM skills ranging from critical thinking and early engineering to following directions. The pieces in the 1-2-3 Build It! Robot Factory set work with all 1-2-3 Build It! building sets, so kids can make their creations even crazier..Build-it-yourself toy's pieces are ready to help kids design, build, and tinker with their own robot squad during open-ended play sessions; for kids from 2 to 6 years old.Made of plastic and comes multicolored.Dimensions: 10"H x 7.15"W x 1.15"D.Contains 18 different pieces for endless robot builds.Comes with an Activity Guide featuring recommended builds, which helps kids learn essential STEM skills ranging from critical thinking and early engineering to following directions
Rumble, crush, and plow into the new Jimu Robot BuilderBots Series Overdrive Kit. With this kit you can create buildable, codable robots like DozerBot and DirtBot or design your own Jimu robot creation. Download the free Jimu app that has step by step, 3D, 360-degree building instructions. The fun is extended with the Blockly coding platform, allowing kids to build and code these robots to perform countless programs and tricks..Building set has everything needed to create a buildable, codable BuilderBot robot or even invent your own.Great for ages eight and up.Robot dimensions: 7.5"H x 6"W x 10.5"D.Kit includes: 410 snap-together parts, two smooth motion robotic servo motors, two DC motors, one ultrasonic sensor and RGB light, one main control box, one USB cable, and quick start guide.Package dimensions: 12"H x 10"W x 2.5"D.STEM learning kit, buildable, codable, interactive robots.Construct DozerBot, DirtBot, or create your own.Learn to use Blockly coding to program your robot to navigate obstacles, carry objects, create color effects, and more.Test your skills with new Blockly coding challenges.Create entirely new, custom actions with the PRP (pose, record, play) function.No tools required – our 3D, 360-degree animated instruction in the free Jimu app walks users through the steps.Compatible iOS or Android device is required.Contains small parts, not for children under three years.Warning: choking hazard.1-year manufacturer limited warranty
Encourage children to explore a wide variety of engineering concepts and solve real-world problems with these age-appropriate toolkits. Teacher-developed Getting Started Guide and extensive supply of building materials provide hours of open-ended exploration..STEM KITS FOR KIDS: Our age-appropriate Ultimate Inventor Toolkits encourage children to explore a wide variety of engineering concepts and solve real-world problems..MODEL KIT BUILDING CHALLENGES: The Ultimate Inventor Toolkit's building challenges promote creative and innovative problem solving as they create.STEM TOYS FOR ENGINEERING: This toolkit focuses on the engineering component of STEM (science, technology, engineering, mathematics)..BUILDING GUIDE AND BEYOND: Along with the challenges provided, students can invent and build their own masterpieces!.ULTIMATE INVENTOR SCIENCE KIT SUPPLIES: Each Toolkit comes with 250+ building materials, 10 building challenges and an activity guide.
Introducing the Contixo Space Station Building Block Set from our Aerospace Series, a captivating and educational toy that takes young aspiring astronauts on an interstellar adventure! With an impressive collection of 573 pieces, this stellar set brings the wonders of space exploration to life, offering endless possibilities for creative play and imaginative construction..As you assemble your space station, you'll absorb scientific concepts, architectural finesse, and engineering secrets. Sharpen your problem-solving skills and think logically while you play..6+ years.As children construct their space station, they learn about key scientific concepts, architectural design, and engineering principles..Unleash your inner builder with 573 high-quality, durable blocks that seamlessly fit together. Craft a control room with a futuristic twist or design satellite arrays that reach for the cosmos!.After the final block clicks into place, behold a magnificent masterpiece! Your Contixo Space Station isn't just a toy; it's a conversation-starting, jaw-dropping display piece..Material: Plastic.Ignite a passion for discovery, and let your imagination soar among the stars with an extraordinary blend of fun, learning, and cosmic exploration!
Snap Circuits uses building pieces with snaps to assemble different electronic circuits on a simple "rows-and-columns" base grid that functions like the printed circuit board found in most electronic products. Each component is easily identifiable by a different color and functional purpose. Learn about electricity and magnetism, and how they relate to each other. Projects provide an understanding of magnetic fields, how the electricity in your home works, and how switches control the electricity to the lights in your home. Snap Circuits STEM reinforces STEM concepts with fun and creative activities and contains an educational manual with a focus on STEM and getting kids excited as they learn. Contain over 45 parts, including Lamps, LED's, relay, magnet & magnetic Switch, meter, 2 electromagnets including one kids can build, motor and so much more..Snap Circuits uses building pieces with snaps to assemble different electronic circuits on a simple "rows-and-columns" base grid that functions like printed circuit board found in most electronics.Contain over 45 parts, including Lamps, LED's, relay, magnet & magnetic Switch, meter, 2 electromagnets including one kids can build, motor and so much more..ABS Plastic, AS Plastic, Paper, Brass (Tin Plated), Iron, Electronic Components.8+ years.Assembled Product Approximately 11 x 7.7 x 4 Inches.Educational manual with a focus on STEM and getting kids excited as they learn..Requires 3 "AA" batteries (not included)..Snap Circuits products have won many awards, including Toy of the Year (TOTY), ASTRA'S Best Toys for Kids, Parent's Choice Recommended.Build over 85 projects.
The hand2mind age-appropriate The Ultimate Inventor tool kits encourage children to explore a wide variety of engineering concepts and solve real-world problems. The teacher-developed project guide and extensive supply of building materials included in this tool kit provide hours of open-ended exploration. The reusable storage box can also be used to store your child's creations..Foster creativity, innovation, and exploration with this tool kit.Recommended for kids ages eight and up.Encourages children to explore engineering concepts and solve real-world problems.Kit includes: more than 250 piece of building materials, 10 building challenges, and activity guide.Open-ended exploration appeals to each child's unique needs.Building challenges promote creative and innovative problem-solving.Warning: choking hazard due to small parts; not recommended for children under three
The PicassoTiles 3D magnetic tile building set has no limitations and is scalable to build as big as desired by adding more pieces to create your masterpiece. The 61-piece set features a variety of fun and creative shapes to allow unique designs. It can be used in conjunction with other PicassoTiles magnet construction toys as an integrated add-on to offer open-ended possibilities to nurture children's creativity and intelligence. It's never too early to start developing children's STEM skills from visual learning, strong sense of color, motor skill, geometrical shapes, magnetic polarity, mathematics, numbers counts, 3D architectural design, structural engineering, to even periodic table elements (available in the other sets). The set keeps children occupied for hours of fun, bringing peace and quiet time home. Encourage creativity, which is the key factor to success in today's ever-changing environments. Fun and entertaining, this set is a perfect educational present for preschool- and school-age children that will never go out of style. The set is designed to foster hand-eye coordination and problem-solving skills..Magnetic tile building set is scalable, allowing you to add more pieces to create your own masterpiece.Suitable for kids ages three and up, and can be enjoyed alone or as a great way to spend quality time with the family and loved ones.Children learn color recognition, geometrical shapes, counting and numbers, magnetic polarities, structural engineering, and 3D architectural design at an early age with this set.Pack contains 61 pieces: 18 small triangles, 10 right triangles, six isosceles triangles, two large squares, and 25 squares.Develops kids creativity and STEAM (Science, Technology, Engineering, Art, and Mathematics) skills.Shapes come in an assortment of transparent colors.Encourage creativity, which is the key factor to success in today's ever-changing environments.Fun and entertaining, this set is a perfect educational present for preschool- and school-age children that will never go out of style.Easy to construct and easy to put away for storage.Explore the wonder of the world by using the idea book (sold separately) as a brainteaser and guide to allow children simulate and put the puzzle pieces together independently.Substitution for electronic devices and digital screens such as TV, gaming, smartphones, or tablets that could be harmful to children's eyes.BPA-free and nontoxic, child-safe, and lead-free
Gears! Gears! Gears!® Gizmos Building SetGet “little engineers” building! Hands-on construction sets with spinning gears build early STEM skills such as problem solving, critical thinking, and perseverance. Includes springs, spirals, and small, medium and large gears, bases for zany, whirly fun; and an Activity Guide. Grades 2+ | Ages 5+ LER 9171 82 Pieces.2+.14.5" x 10.9" x 4.2".Hands-on construction sets with spinning gears build early STEM skills such as problem solving, critical thinking, and perseverance.Includes springs, spirals, and small, medium and large gears, bases for zany, whirly fun.Activity guide.Supports Sensory Motor Skills
This activity kit challenges students to create a hydraulic-powered device. The essential pieces, plastic syringes, and vinyl tubing are provided; it's up to the young scientists to determine how best to utilize their hydraulic system. Using the engineering design process students will create, evaluate, and redesign their simple machine until their objective is met. By approaching a problem or a challenge with this though process, children are able to make educated guesses, problem solve, and learn without the fear of making mistakes..STEM Starter Kit.Paper, Wood, Plastic, Vinyl.Includes enough materials to begin 6 hydraulic devices, 18 pieces total.Recommended Age: 8-14 years.Perfect for individuals or small groups.STEM Starter provide students with essential tools to complete hands-on projects
Create intricate, tunnels, towers, ramps and chutes with this interactive STEM tool! No glue, no connectors, just simple stacking and the laws of gravity. Each Contraptions construction set comes with 200 high-precision KEVA planks and two specially designed bouncy balls that are lightweight for maximum action! The detailed guide book shows you the steps needed to build numerous clever builds and is loaded with dozens of full-color photos, ideas and inventing tips. As you build, learn the principals of slope, velocity, force, momentum and balance. The "bounce" of the ball provides some of the most surprising moves—make it twist, bump, hop and stop. Projects vary in difficultly, making it suitable for a wide range of ages and abilities. Once you've mastered the suggested builds, use your imagination to create your own! KEVA Contraptions is an inspiration to future engineers, architects and designers and provides an amazing array of creative possibility. Learn the basics of physics and engineering. Strengthens analytical skills, resilience and creativity. Guide book is loaded with instructions, photos, ideas and tips. Includes 200 durable planks and two specially designed KEVA balls. Simple, high-quality materials for countless hours of fun . Age Recommendation: Ages 7 and up. WARNING: CHOKING HAZARD - This toy is a small ball. Not for children under 3 years..Building Set.Natural Wood Color.Pine Planks.For ages 7 Years +.Take hands-on learning to the next level with KEVA Contraptions!
If you've ever built structures with craft sticks, imagine what you might create with these bright and colorful twist and snap Structure Sticks! Each stick is uniquely designed with notches, slots and hexagonal keyholes that offer lots of options for building. Create simple objects like tables and boxes, or dream up complex designs like space crafts and moon stations! The flexible material is easy to manipulate, yet strong enough to hold up to heavy use. Each pack includes 400 sticks, 4.375" x 0.375" (11 x 1 cm) in 5 colors. Sold as 2 packs for a total of 800 sticks..Roylco® Structure Sticks Building Set is great for building and engineering.Recommended for use with Grade PK+.Encourages creativity, building, and design.Individual sticks measure 4.375" x 0.375" (11 x 1 cm).Color: Red, Yellow, Blue, Green, Orange; Material: Plastic.Bundle includes 400 sticks per pack, 2 packs.Flexible and sturdy
Children will enjoy screen-free fun and machines that really move with the Gears! Gears! Gears! Fun Land Motorized Gears Set. Using the included instructions, kids can build their own versions of an amusement park with special parts: a handheld motor, carousel, Ferris wheel, bumper cars, roller coaster, play figures and enough colorful, spinning gears for hours of fun. Every Gears! Gears! Gears! set from Learning Resources encourages kids to discover their inner engineer and hone STEM skills such as critical thinking and trial and error. Each set also works with other Gears! sets and increases the playability of every piece..Kids can build the amusement park of their dreams with this colorful 120 -piece set.Includes a handheld motor that sets rides in motion–from the carousel and ferris wheel to the bumper cars and roller coaster- set also includes play figures and plenty of spinning gears.Motor requires 2 AA batteries, not included.Design and build your own structures.Develop STEM problem solving skills.Easy to assemble.Includes a handheld motor.Combine with any of our Gears! sets for even more fun.Ages 4+.120 piece set.Supports Sensory Motor Skills
With 60 Red White & Blue tiles of various shapes and sizes, kids can build anything their mind imagines through innovative play. With a simple click, these magnetic learning tiles can bring to life 1000s of different creations and dreams. This amazing set features a wide variety of striking colors and shapes including triangles, squares, rectangles and more! Tiles can be crafted into large 3D buildings, castles, and various fun objects. Children will get to explore their imagination and fine-tune their motor skills. This award-winning set is certified by STEM.org as an educational tool to help develop STEM (Science, Technology, Engineering, and Mathematics) skills. Kids will get to work with shapes, pattern recognition, magnetic principles, and architectural building. The 50-piece kit from Tytan Tiles is made from environmentally friendly materials, is parent-tested, and has the highest level of CPSA child safety certifications..Magnetic tiles made for building 3D structures and objects.Ages 3+.Helps kids explore their imagination while fine-tuning their motor skills.60 piece kit with tiles in red, white and blue colors.STEM.org Certified.With a simple click, these magnetic tiles can bring to life 1000s of different creations & dreams.The set features a wide variety of striking colors and shapes.Tiles can be crafted into large 3D buildings then easily taken apart.Helps kids work with shapes, pattern recognition, magnetic principles, and architectural building.Made from environmentally friendly materials & has the highest CPSA child safety certifications
This kit provides an electronic brick based construction set with curriculum to teach STEM. The colorful building blocks contain electronic components such as a battery module, switches, LEDs, motor, speaker, IC sound module, amplifier or FM receiver. Build 120 different 3D circuits that teach STEM and light a star, spin a motor to launch a fan high in the air, play music, sirens and space battle sounds, and even build your own FM radio! Curriculum includes a 79 page online teacher guide with 7 lessons of animated curriculum, quizzes and quiz answer sheets that address Next Generation Science Standards (NGSS) requirements..STEM Activity Kit.14 x 10 x 2 Inches.Black/ABS Plastic
It's big. It's mighty. It's your next construction challenge. This LEGO Technic Liebherr Crawler Crane LR 13000 model building set for adults is one of the largest models in the LEGO Technic range (as of August 2023). Packed with details, it features realistic movement in an impressive tribute to one of the world's most powerful cranes. Immerse yourself in the details as you enjoy a mindful build that celebrates one of the world's most powerful cranes. Then put your crane model to work using the CONTROL+ app to see what this mighty machine can do. Realistic functions include the tank steering, rotating turntable, luffing jib, winch, and load sensing. This set is part of a collection of LEGO model building kits for adults who appreciate excellent design. A new hands-on project for you or the perfect gift for a crane fan, this LEGO Technic building set provides a rewarding build with a detailed model to explore..Recreate one of the world's most powerful cranes with this building set.Recommended for ages 18 and up.Dimensions: 39"H x 11"W x 43"D.Standing at over 38" high, this crane building set is one of the largest models in the LEGO Technic range.Download the CONTROL+ app to take charge of this mighty machine.Use the app to control the model crane, see vehicle stats, and try challenges.Give as a gift for builders and construction fans, or treat yourself to a project to savor.Check out the tank steering, rotating turntable, luffing jib, winch, and load sensing features.This model building kit for adults comes with two smart hubs and six large motors (included) to power the articulated functions.12 x LR AA batteries (not included) are required.LEGO Builder app features a digital version of the building instructions included with this set.Warning: choking hazard; due to small parts, not recommended for children under three years
The learning adventure from Learning Resources STEM Explorers! As they explore this machine maker set's challenge guide, kids will design, construct, and test twisting, turning machines that demonstrate essential STEM principles. Set of 55 pieces includes gears, pulleys, and belt drives. Works with all Gears! Gears! Gears! sets..Machine maker set is a great learning adventure for young explorers.Recommended for kids ages five and up.Allows to design, construct, and test twisting, turning machines that demonstrate essential STEM principles.Package contents: 55 pieces of gears, pulleys, and belt drives
Give young vehicle fans a treat with the LEGO Technic Heavy-Duty Bulldozer building set for kids ages seven and up who love construction toys. Inspired by real bulldozers, the yellow color scheme captures the imaginations of Technic builders, encouraging boys and girls to develop new building skills. Authentic details include the tracks and the blade, which kids can lift and lower using the element on top of the bulldozer. This set makes a great gift idea for kids who love vehicles. LEGO Technic construction sets (each sold separately) feature realistic details that introduce young LEGO builders to engineering in an approachable way. Give kids a fun building adventure with the LEGO Builder app, which lets them zoom in and rotate models in 3D and track their progress..This neat construction toy for kids makes a great treat for children who love bulldozers.Recommended for kids ages seven and up.Features realistic movement and mechanisms to introduce young builders to the universe of engineering.Contains 195 pieces.Features authentic details to delight young vehicle fans.Just like a real bulldozer, this model features a moving blade that kids can lift and lower using the element on top of the vehicle toy.After having fun building the bulldozer toy, kids can push the model along on its tracks as they create their own construction site adventures.Kids can zoom in, rotate sets in 3D, and track their progress using the fun and intuitive LEGO Builder app.Model measures over 3"H x 3"W x 4"D
Geomag Education is unique due to the fundamental magnetic property of our products. Our Education kits teach magnetic polarity while making building fun for students of all ages. Additionally, students are also introduced at an early age to the fascinating world of physics and are given important insight into its technological, engineering and mechanical applications. We believe in hands on development and students are given task cards to help encourage a systematic approach that embraces active and collaborative learning. Progressively challenging tasks are carried out in groups and roles are split between team members. Working as a unit enhances problem-solving skills, builds communication knowhow, promotes self-esteem and encourages a child's overall learning development..Geomag Education kits encourage a systematic approach that embraces active and collaborative learning. Progressively challenging tasks are carried out in groups and roles are split..5-10 years.Geomag Education kits introduce an interdisciplinary approach to learning where students apply Science, Technology, Engineering and Mathematics (STEM) in contexts that reflect real-life experiences..266 Magnetic Rods, 168 Non-Magnetic Balls, 140 Triangle Panels, 120 Square Panels, 40 Pentagon Panels, 3 Base Panels, 40 Task Cards.Work groups come to life as students explore 2D polygons, 3D geometric shapes and much more..PP colored plastic with Nd-Fe-B magnets zinc coated.A progressive series of cards define a model to complete, questions for students to independently discuss and questions to help teachers assess students' understanding..The engaging content gives insight to both structured and open-ended play.
Robot Building STEM Adventures: Kids can build a space mech robot and change it to multiple forms for STEM storytelling. Action-packed robotics warrior figure combines to create a military superhero soldier, a cool construction car, and classic animal. Includes hot stickers that glow for best glow in the dark robot toys . Instructions for how to use interlocking bricks and brick separator for elite forces soldiers. Customization with Glow in the Dark Stickers: The unique glowing stickers let kids be creative and diy ideas to decorate the blocks however they'd like for luminescent robot action figures, trucks, animal and space toys for boys 5-8. make your own awesome projects and activities. There are five Garantron Robotryx robot commanders characters so start your collection with this one today..Action-packed robotics warrior figure combines to create a 3 in 1 glow in the dark robot toys..Allows kids be creative and diy ideas to decorate the blocks however they'd like for the figures..Each kit comes in a colorful storage box in which all the pieces can be stored after play..These popular toys for fans of building playing for children's educational engineering learning to make mech action figure army toys for boys 6-8..Robotryx toys are made from sturdy plastic that is perfect for small hands and holds up to tough play..JITTERYGIT Robot Building Toy Gift for Boys, Perfect STEM Gift for Builders Ages 6, 7, 8, 9, and 10 Year Olds, Yellow Zakarpian (238 Pcs) Robotryx
Introducing the Contixo Mars Rover Building Block Set from our highly acclaimed Aerospace Series! With a remarkable collection of 359 meticulously designed pieces, this awe-inspiring set is the perfect way to ignite your imagination and embark on an interplanetary adventure..Craft Your Martian Marvel: Ignite your curiosity by crafting your very own futuristic Mars rover that mirrors the real-life robotic marvels exploring the mysterious Martian landscapes..6+ years.Embark on an Epic Space Journey: Step into the shoes of a daring explorer and rocket into the realm of space with the Contixo BK06 Aerospace Series Mars Rover Building Block Set 359 PCS..Prepare for an exciting blend of fun and education as you tinker with the meticulously crafted building blocks, unlocking a world of engineering insights and intergalactic discoveries..Robotic Wonders Come to Life: Witness the magic unfold as you assemble a rover boasting a nifty robotic arm, and high-grip wheels an incredibly authentic space rover experience at your fingertips..Material: Plastic
Kids ages nine and up can enjoy a rewarding building project as they assemble all the details of this LEGO Technic Lamborghini Huracan Tecnica realistic model building set. Its authentic details are designed to thrill super sports car fans and include a V10 engine, opening doors, and steering. This set makes a great birthday or any-occasion gift for a child who dreams of owning a Lamborghini. This LEGO Technic buildable model set features realistic movement and mechanisms that introduce young LEGO builders to the universe of engineering in an approachable and realistic way. Give your youngster an easy and intuitive building adventure with the LEGO Builder app. Here, they can zoom in and rotate models in 3D, save sets, and track their progress..Give super sports car enthusiasts a challenge to remember as they assemble all the details of this model toy building set.Recommended for kids ages nine and up.Dimensions: 3"H x 4.5"W x 11"D.Kids can build and explore the moving V10 engine, steering, and opening doors of this car model.This Lamborghini model car features a classic green color scheme.Give this Lamborghini model super sports car toy to a child who loves super cars and cool car toys.After building and exploring the car, kids can display their model with pride.Discover intuitive instructions in the LEGO Builder app, where builders can zoom in and rotate models in 3D, track their progress, and save sets as they develop new skills.Features realistic movement and mechanisms that introduce young builders to the universe of engineering.Advanced building toy for the fans who are ready for a new building challenge
This set is ideal for in-class, home schooling or teaching through e-learning of STEM. The colorful building blocks contain electronic components such as a battery module, a geared motor module, a gear module and LED modules. Includes online animated curriculum only available with E-Blox Student Sets. Lessons cover Building Fundamentals, Electricity & Circuits, Motors, Gears & Light..Build whatever creative structures come to your imagination...the possibilities are limitless!.Ages 5 and up.Learn about voltage, current and how circuits with motors, gears and LEDs work..Contains 25 parts including 4 colorful LED modules and 16 flashing & color changing LED modules..Requires 3 "AA" batteries.Material: ABS.Directly compatible with other brick building construction sets
Geomag Education is unique due to the fundamental magnetic property of our products. Our Education kits teach magnetic polarity while making building fun for students of all ages. Additionally, students are also introduced at an early age to the fascinating world of physics and are given important insight into its technological, engineering and mechanical applications. We believe in hands on development and students are given task cards to help encourage a systematic approach that embraces active and collaborative learning. Progressively challenging tasks are carried out in groups and roles are split between team members. Working as a unit enhances problem-solving skills, builds communication knowhow, promotes self-esteem and encourages a child's overall learning development..Geomag Education kits encourage a systematic approach that embraces active and collaborative learning. Progressively challenging tasks are carried out in groups and roles are split..5-10 years.Geomag Education kits introduce an interdisciplinary approach to learning where students apply Science, Technology, Engineering and Mathematics (STEM) in contexts that reflect real-life experiences..90 Magnetic Rods, 80 Non-Magnetic Balls, 32 Triangle Panels, 32 Square Panels, 4 Pentagon Panels, 6 Base Panels, 40 Task Cards.Work groups come to life as students explore 2D polygons, 3D geometric shapes and much more..PP colored plastic with Nd-Fe-B magnets zinc coated.A progressive series of cards define a model to complete, questions for students to independently discuss and questions to help teachers assess students' understanding..The engaging content gives insight to both structured and open-ended play.
Robot Building STEM Adventures: Kids can build a space mech robot and change it to multiple forms for STEM storytelling. Action-packed robotics warrior figure combines to create a military superhero soldier, a cool construction car, and classic animal. Includes hot stickers that glow for best glow in the dark robot toys . Instructions for how to use interlocking bricks and brick separator for elite forces soldiers. Customization with Glow in the Dark Stickers: The unique glowing stickers let kids be creative and diy ideas to decorate the blocks however they'd like for luminescent robot action figures, trucks, animal and space toys for boys 5-8. make your own awesome projects and activities. There are five Garantron Robotryx robot commanders characters so start your collection with this one today..Action-packed robotics warrior figure combines to create a 3 in 1 glow in the dark robot toys..Allows kids be creative and diy ideas to decorate the blocks however they'd like for the figures..Each kit comes in a colorful storage box in which all the pieces can be stored after play..These popular toys for fans of building playing for children's educational engineering learning to make mech action figure army toys for boys 6-8..Robotryx toys are made from sturdy plastic that is perfect for small hands and holds up to tough play..JITTERYGIT Mech Buildable Robot Glow in The Dark STEM Action Figure Toy Set, Cool Space Super Hero Christmas Birthday Gift, Xmas 3 in 1 Present DIY for Boys, Girls, Teen 6 7 8 9 10 Year Olds
This open-ended building toy inspires creativity while enhancing early engineering skills and problem-solving. Use the included play guide as a runway for all of your complex creations! Has STEAM development. Includes 100 structure sticks and play guide with graduating formations..UNIQUE DESIGN - Each Roylco structure kit comes with notches, slots, and hexagonal shape keyholes designed to provide a wide range of building ideas, making it an excellent engineering toolkit..4-8+ years.Help your child inspire creativity and develop problem solving skills to improve focus..Includes 100 structure sticks and play guide with graduating formations..INSPIRE CREATIVITY - These fort building kit for kids can be used to create a simple table and boxes or more Intricate building kits like space crafts and moon mission control center..Material: Plastic.ULTRA DURABLE - With our kids building kit, you can create super strong, long lasting creations like play baskets, tables and chairs thanks to the ultra durable, flexible sticks material..MULTI COLOR - These building sticks come in bright multi color and add more fun to your craft creations..Our children's building kit is easy to alter, making it a great building toy for young children. The building set is made of flexible building sticks that are sturdy to hold up daily use.