Exercise Ball Chairs
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Zenergyā¢ ball chairs are a unique seating option that encourages movement throughout the day and may help support better posture and balance. This ball chair is covered in vinyl fabric and also has four legs with stationary glides to provide extra stability during movement. The legs are powder coated for long-lasting durability. Great for use as a desk chair, in waiting rooms, meeting spaces, classroom or home for an alternative chair that allows for dynamic movement. Available in 6 color options to suit personal preference or create a cohesive, branded look in work settings..Anti-burst 17 1/2" exercise ball with mesh cover and legs to create a unique ball chair.Black, Polyester.Supports movement and may help encourage better posture and balance.23"H x 22.5"W x 22.5"D.Seat dimensions: 23"H x 17.5"W x 17.5"D.Armless.Rated for up to 250 lbs.Four powder coated legs and stationary glides for stability and durability.Great alternative desk chair or for use in meeting areas, gathering spaces, waiting rooms or classrooms.Remove legs and replace chair feet to provide another size option; Heights available: with legs 23ā, without legs 20ā.Pump included with ball chair.Available in 6 color options.Part of the Safco Activeā¢ line; Safco Active products are designed to promote active movement throughout the day and engage major muscle groups to help combat the negative effects of inactivity in the office.Assembly Required.Designed by Thomas Walser.Meets or exceeds ANSI/BIFMA standards.Zenergyā¢ ball chairs are a unique seating option that encourages movement throughout the day and may help support better posture and balance.
The Safco Runtz ball chair is a unique seating option that helps encourage active movement as well as better posture and balance. Specially designed for children, this chair is great for school or home settings as well as waiting rooms. Supported by four legs to provide a sturdy base during movement. Legs are powder-coated for long-lasting durability and to provide resistance against chipping and scratching. Fully inflated, the seat height is 17" and will lower when occupied. The pump is included with this ball chair..Novelty chair with anti-burst exercise ball helps children stay active, develops better posture and balance.Plastic ball is upholstered in blue polyester fabric.Supported by four powder-coated legs to provide a sturdy base during movement.Overall dimensions: 17"H x 22.5"W x 22.5"D with legs, 13.5"H without legs.Seat dimensions: 12"W x 12"D.Armless design allows for easy movement and versatility.Safely supports a user who weighs up to 250 lbs..Assembly required.Meets or exceeds CPSIA and GREENGUARD standards
Studies show that comfortable employees are happier and more productive. In the modern workplace, the ability to move is increasingly important for overall comfort and well-being. Ballo makes movement effortless, while its lightweight design makes it easy to transport for spontaneous use..Ballo combines functional, innovative design with the playfulness of an exercise ball. Its counterweighted base helps Ballo remain upright for stable movement and convenient storage. The result is a multipurpose stool that allows users to move with ease..Weighing just 13.5 pounds and fitted with hand-holds for easy portability, Ballo is the perfect match for any space where short-term sitting and flexibility are priorities. Itās the ideal multipurpose stool for collaboration spaces, cafeterias and reception areas, as well as traditional workspaces and home offices..Ballo was designed to stand the test of time. Its classic design and durable materials make it a valuable investment for any space. Made from non-slip TPV material, Balloās symmetrical top domes are easy to clean and its compact shape makes storage simple..Ballo promotes playful productivity for collaborations and short-term sitting assignments..Net Positive certification means every Ballo produced helps actively offset climate damage..Ballo is a dynamic multipurpose stool designed with Don Chadwick to encourage movement and actively engage you while working at home or in the office. Its compact central column & lightweight air domes provide ergonomic support and allow easy transport for spontaneous use.
Studies show that comfortable employees are happier and more productive. In the modern workplace, the ability to move is increasingly important for overall comfort and well-being. Ballo makes movement effortless, while its lightweight design makes it easy to transport for spontaneous use..Ballo combines functional, innovative design with the playfulness of an exercise ball. Its counterweighted base helps Ballo remain upright for stable movement and convenient storage. The result is a multipurpose stool that allows users to move with ease..Weighing just 13.5 pounds and fitted with hand-holds for easy portability, Ballo is the perfect match for any space where short-term sitting and flexibility are priorities. Itās the ideal multipurpose stool for collaboration spaces, cafeterias and reception areas, as well as traditional workspaces and home offices..Ballo was designed to stand the test of time. Its classic design and durable materials make it a valuable investment for any space. Made from non-slip TPV material, Balloās symmetrical top domes are easy to clean and its compact shape makes storage simple..Ballo promotes playful productivity for collaborations and short-term sitting assignments..Net Positive certification means every Ballo produced helps actively offset climate damage..Ballo is a dynamic multipurpose stool designed with Don Chadwick to encourage movement and actively engage you while working at home or in the office. Its compact central column & lightweight air domes provide ergonomic support and allow easy transport for spontaneous use.
Studies show that comfortable employees are happier and more productive. In the modern workplace, the ability to move is increasingly important for overall comfort and well-being. Ballo makes movement effortless, while its lightweight design makes it easy to transport for spontaneous use..Ballo combines functional, innovative design with the playfulness of an exercise ball. Its counterweighted base helps Ballo remain upright for stable movement and convenient storage. The result is a multipurpose stool that allows users to move with ease..Weighing just 13.5 pounds and fitted with hand-holds for easy portability, Ballo is the perfect match for any space where short-term sitting and flexibility are priorities. Itās the ideal multipurpose stool for collaboration spaces, cafeterias and reception areas, as well as traditional workspaces and home offices..Ballo was designed to stand the test of time. Its classic design and durable materials make it a valuable investment for any space. Made from non-slip TPV material, Balloās symmetrical top domes are easy to clean and its compact shape makes storage simple..Ballo promotes playful productivity for collaborations and short-term sitting assignments..Net Positive certification means every Ballo produced helps actively offset climate damage..Ballo is a dynamic multipurpose stool designed with Don Chadwick to encourage movement and actively engage you while working at home or in the office. Its compact central column & lightweight air domes provide ergonomic support and allow easy transport for spontaneous use.
Studies show that comfortable employees are happier and more productive. In the modern workplace, the ability to move is increasingly important for overall comfort and well-being. Ballo makes movement effortless, while its lightweight design makes it easy to transport for spontaneous use..Ballo combines functional, innovative design with the playfulness of an exercise ball. Its counterweighted base helps Ballo remain upright for stable movement and convenient storage. The result is a multipurpose stool that allows users to move with ease..Weighing just 13.5 pounds and fitted with hand-holds for easy portability, Ballo is the perfect match for any space where short-term sitting and flexibility are priorities. Itās the ideal multipurpose stool for collaboration spaces, cafeterias and reception areas, as well as traditional workspaces and home offices..Ballo was designed to stand the test of time. Its classic design and durable materials make it a valuable investment for any space. Made from non-slip TPV material, Balloās symmetrical top domes are easy to clean and its compact shape makes storage simple..Ballo promotes playful productivity for collaborations and short-term sitting assignments..Net Positive certification means every Ballo produced helps actively offset climate damage..Ballo is a dynamic multipurpose stool designed with Don Chadwick to encourage movement and actively engage you while working at home or in the office. Its compact central column & lightweight air domes provide ergonomic support and allow easy transport for spontaneous use.
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With a minimal aesthetic that complements any space, the Liberty chair is the ideal seating solution for the modern work environment. With advanced features, including automatic, weight-sensitive recline, arm rests that are attached to the back of the chair for constant support and an innovative tri-panel mesh backrest, Liberty combines performance, simplicity and beauty. With fewer parts than traditional task chairs, Liberty is a timeless and environmentally friendly design..Effortless Recline: Liberty's intelligent mechanism-free recline uses the laws of physics and the sitter's weight to automatically provide the perfect amount of support through the full range of recline. Without manual controls to adjust, the user can change postures effortlessly throughout the day..Custom Fit: Liberty's mesh back is formed by combining three panels of non-stretch mesh material in the same way a tailor combines multiple pieces of fabric to create a shirt. Its contours are made to custom fit and support each individual sitter throughout the day..Encourages Movement: Liberty was engineered to automatically adjust to whoever sits in it, instantly accommodating each user regardless of size and weight. Because it has no manual adjustments and features Humanscale's weight-sensitive recline, the user can move easily and without restrictions..A world-class ergonomic task chair with minimalist charms, Liberty projects versatility in both style and function. A form-sensing mesh back supports your unique pressure points while encouraging freedom of movement.
With a minimal aesthetic that complements any space, the Liberty chair is the ideal seating solution for the modern work environment. With advanced features, including automatic, weight-sensitive recline, arm rests that are attached to the back of the chair for constant support and an innovative tri-panel mesh backrest, Liberty combines performance, simplicity and beauty. With fewer parts than traditional task chairs, Liberty is a timeless and environmentally friendly design..Effortless Recline: Liberty's intelligent mechanism-free recline uses the laws of physics and the sitter's weight to automatically provide the perfect amount of support through the full range of recline. Without manual controls to adjust, the user can change postures effortlessly throughout the day..Custom Fit: Liberty's mesh back is formed by combining three panels of non-stretch mesh material in the same way a tailor combines multiple pieces of fabric to create a shirt. Its contours are made to custom fit and support each individual sitter throughout the day..Encourages Movement: Liberty was engineered to automatically adjust to whoever sits in it, instantly accommodating each user regardless of size and weight. Because it has no manual adjustments and features Humanscale's weight-sensitive recline, the user can move easily and without restrictions..A world-class ergonomic task chair with minimalist charms, Liberty projects versatility in both style and function. A form-sensing mesh back supports your unique pressure points while encouraging freedom of movement.
The Freedom task chair revolutionizes the way people sit. With its weight-sensitive recline and synchronously adjustable armrests, it set new standards for task chair performance and functionality. With a sculpted foam backrest to match the contours of the human body and thick cushions for long lasting comfort, it provides a custom ergonomic fit for every user..Long Lasting Comfort: Freedom's body-fitting contours ensure the user sits in comfort all day long. Our cushions are built to maximize comfort for four hours, rather than the industry standard four minutes, which is as long as a sit-test in a new chair generally lasts..Effortless Recline: Freedom's intelligent recline mechanism automatically provides custom support for every user, and encourages healthy, spontaneous movement throughout the day. Without cumbersome knobs or levers, and with no manual adjustments, Freedom task makes active sitting effortless..Intuitive Adjustment: The revolutionary design of the Freedom's backrest allows automatic pivoting to accommodate the changing needs of the spine. Its synchronous armrests stay with the user during recline, for constant support and ongoing comfort..Niels Diffrient's "gold standard in office seating" (The New York Times) eliminates levers, dials & other mechanisms to provide physics-driven, ergonomic support that's as simple as it is elegant. Its headrest also moves with you, seamlessly supporting the head and neck in any posture - no manual adjustment required.
The Freedom task chair revolutionizes the way people sit. With its weight-sensitive recline and synchronously adjustable armrests, it set new standards for task chair performance and functionality. With a sculpted foam backrest to match the contours of the human body and thick cushions for long lasting comfort, it provides a custom ergonomic fit for every user..Long Lasting Comfort: Freedom's body-fitting contours ensure the user sits in comfort all day long. Our cushions are built to maximize comfort for four hours, rather than the industry standard four minutes, which is as long as a sit-test in a new chair generally lasts..Effortless Recline: Freedom's intelligent recline mechanism automatically provides custom support for every user, and encourages healthy, spontaneous movement throughout the day. Without cumbersome knobs or levers, and with no manual adjustments, Freedom task makes active sitting effortless..Intuitive Adjustment: The revolutionary design of the Freedom's backrest allows automatic pivoting to accommodate the changing needs of the spine. Its synchronous armrests stay with the user during recline, for constant support and ongoing comfort..Niels Diffrient's "gold standard in office seating" (The New York Times) eliminates levers, dials & other mechanisms to provide physics-driven, ergonomic support that's as simple as it is elegant. Its headrest also moves with you, seamlessly supporting the head and neckĀ in any posture - no manual adjustment required.
Studies show that comfortable employees are happier and more productive. In the modern workplace, the ability to move is increasingly important for overall comfort and well-being. Ballo makes movement effortless, while its lightweight design makes it easy to transport for spontaneous use..Ballo combines functional, innovative design with the playfulness of an exercise ball. Its counterweighted base helps Ballo remain upright for stable movement and convenient storage. The result is a multipurpose stool that allows users to move with ease..Weighing just 13.5 pounds and fitted with hand-holds for easy portability, Ballo is the perfect match for any space where short-term sitting and flexibility are priorities. Itās the ideal multipurpose stool for collaboration spaces, cafeterias and reception areas, as well as traditional workspaces and home offices..Ballo was designed to stand the test of time. Its classic design and durable materials make it a valuable investment for any space. Made from non-slip TPV material, Balloās symmetrical top domes are easy to clean and its compact shape makes storage simple..Ballo promotes playful productivity for collaborations and short-term sitting assignments..Net Positive certification means every Ballo produced helps actively offset climate damage..Ballo is a dynamic multipurpose stool designed with Don Chadwick to encourage movement and actively engage you while working at home or in the office. Its compact central column & lightweight air domes provide ergonomic support and allow easy transport for spontaneous use.
Niels Diffrient designed Diffrient World to offer ease of use and effortless functionality. With weight-sensitive recline that adjusts automatically and armrests that are attached to the back of the chair so they move with the user for ergonomic comfort, Diffrient World provides custom comfort for every sitter. A high quality, affordable task chair with minimal parts, Diffrient World was built with longevity in mind and will look as good in ten years as it does today..Invisible Recline Mechanism: Diffrient World uses the laws of physics and harnesses the user's body weight to automatically provide the right amount of recline for every individual, every time. Its groundbreaking mechanism-free recline action leverages two parts of the chair's frame to provide automatic, balanced support throughout the full range of motion for maximum support..Responsive Bracket: Diffrient developed the chair's back using the laws of physics, which eliminates the requirement for a separate lumbar support, which tends to create a pressure point and requires manual adjustment. With patented Form Sensing Mesh Technology, the backrest perfectly conforms to the sitter's entire back as if custom made for them..Sitting on Air: A truly lightweight chair, Diffrient World replaces the standard cushion seat with a low-abrasion, non-stretch mesh. To maximize comfort, Diffrient eliminated the front edge of the chair, solving a perennial problem of hard edges placing pressure on the knees and contact stress behind the thighs, allowing long-term comfort and total supports for every sitter..Diffrient World delivers all-mesh elegance, merging premium lumbar care with adaptability. Niels Diffrient's full-function ergonomic task chair looks at home in any modern office and offers customized back support through physics-powered design and tri-panel mesh.
Niels Diffrient designed Diffrient World to offer ease of use and effortless functionality. With weight-sensitive recline that adjusts automatically and armrests that are attached to the back of the chair so they move with the user for ergonomic comfort, Diffrient World provides custom comfort for every sitter. A high quality, affordable task chair with minimal parts, Diffrient World was built with longevity in mind and will look as good in ten years as it does today..Invisible Recline Mechanism: Diffrient World uses the laws of physics and harnesses the user's body weight to automatically provide the right amount of recline for every individual, every time. Its groundbreaking mechanism-free recline action leverages two parts of the chair's frame to provide automatic, balanced support throughout the full range of motion for maximum support..Responsive Bracket: Diffrient developed the chair's back using the laws of physics, which eliminates the requirement for a separate lumbar support, which tends to create a pressure point and requires manual adjustment. With patented Form Sensing Mesh Technology, the backrest perfectly conforms to the sitter's entire back as if custom made for them..Sitting on Air: A truly lightweight chair, Diffrient World replaces the standard cushion seat with a low-abrasion, non-stretch mesh. To maximize comfort, Diffrient eliminated the front edge of the chair, solving a perennial problem of hard edges placing pressure on the knees and contact stress behind the thighs, allowing long-term comfort and total supports for every sitter..Diffrient World delivers all-mesh elegance, merging premium lumbar care with adaptability. Niels Diffrient's full-function ergonomic task chair looks at home in any modern office and offers customized back support through physics-powered design and tri-panel mesh.
The Freedom task chair revolutionizes the way people sit. With its weight-sensitive recline and synchronously adjustable armrests, it set new standards for task chair performance and functionality. With a sculpted foam backrest to match the contours of the human body and thick cushions for long lasting comfort, it provides a custom ergonomic fit for every user..Long Lasting Comfort: Freedom's body-fitting contours ensure the user sits in comfort all day long. Our cushions are built to maximize comfort for four hours, rather than the industry standard four minutes, which is as long as a sit-test in a new chair generally lasts..Effortless Recline: Freedom's intelligent recline mechanism automatically provides custom support for every user, and encourages healthy, spontaneous movement throughout the day. Without cumbersome knobs or levers, and with no manual adjustments, Freedom task makes active sitting effortless..Intuitive Adjustment: The revolutionary design of the Freedom's backrest allows automatic pivoting to accommodate the changing needs of the spine. Its synchronous armrests stay with the user during recline, for constant support and ongoing comfort..Niels Diffrient's "gold standard in office seating" (The New York Times) eliminates levers, dials & other mechanisms to provide physics-driven, ergonomic support that's as simple as it is elegant. Its headrest also moves with you, seamlessly supporting the head and neck in any posture - no manual adjustment required.
Diffrient World is Humanscale's first foray into all-mesh task seating. Designer Niels Diffrient wanted to create the most minimal, full-function task chair ever made. With an innovative three-panel mesh backrest that provides custom back and lumbar support and a lightweight design, Diffrient World is, like all of Humanscale's products, simple, beautiful, and functional. The design eliminates the need for traditional mechanisms, instead using the laws of physics and the sitter's body weight to offer perfect recline for each individual sitter. Diffrient World offers the ultimate user-friendly sitting experience..Task chair that embodies an unprecedented combination of performance, sustainability, and simplicity.Features a black frame with black mesh back and lotus textile seat.Form-sensing mesh technology provides tailor-made lumbar support without external devices or manual controls.Seat dimensions: 20.5"-28.5"H x 20.2"W.Back dimensions: 22.5"H x 16"W.Adjustable Duron arms.Chair uses the laws of physics and harnesses the user's body weight to automatically provide the right amount of recline for every individual, every time.Weight capacity: up to 300 lbs..Assembly required.Low-abrasion mesh protects clothing while providing ultimate breathability.Meets or exceeds the CAL 133, BIFMA Level 3, and GREENGUARD standards.5-year manufacturer limited warranty on textile and mesh; 15-year limited warranty on all other components
Adjustable height balance stool lets you perch near standing (perfect for standing desks), sit still, or gently rock, tip, twist, swivel and move while sitting normally..Active Balance Stool - rock, tip, twist and move with this elegant active balance stool.Black, PU-Leather Seat offers enough grip to lean and is easy to clean (wipes clean with a damp cloth).Approx 13" footprint with height adjustable from approx. 23-33".Premier 3" molded cushioned seat waterfalls over the edgeless seat frame for enhanced comfort.More functional, fun and aesthetic than a balance ball.Adjustable height 23" - 33ā and swivels 360 degrees.250 lb. weight capacity.Full Assembly Required
Niels Diffrient designed Diffrient World to offer ease of use and effortless functionality. With weight-sensitive recline that adjusts automatically and armrests that are attached to the back of the chair so they move with the user for ergonomic comfort, Diffrient World provides custom comfort for every sitter. A high quality, affordable task chair with minimal parts, Diffrient World was built with longevity in mind and will look as good in ten years as it does today..Form-Sensing Mesh: Tri-panel, non-stretch mesh construction creates body-fitting contours and self-adjusting lumbar support for a customized fit.Self-Adjusting Recline: Intelligent counter-balance recline mechanism automatically provides the right amount of support through the full range of recline motion, regardless of user size and weight with no tension springs and recline locks to adjust.Pivoting Backrest: Extra motion of the backrest during recline automatically adjusts to the changing needs of the spine. Provides additional lumbar support as needed.Synchronous Armrests: Revolutionary armrests move in tandem to eliminate uneven arm positioning. Natural lift and release action for immediate repositioning without any buttons or lock. Attached to backrest so arms stay in same relation to body during recline. Duron arm pad for durability and comfort.Non-Stretch Mesh Seat: Automatically sculpts to match body contours. Cradles the body in flexible, breathable mesh. Frameless front edge eliminates contact stress under the thighs.Diffrient World delivers all-mesh elegance, merging premium lumbar care with adaptability. Niels Diffrient's full-function ergonomic task chair looks at home in any modern office and offers customized back support through physics-powered design and tri-panel mesh.
Wobble Stool - an elegant, durable and comfortable balance chair designed for the modern office. ACTIVE SITTING CHAIR - Wobble Stoolās patented base encourages you to rock, swivel, tilt, lean and move while sitting. We designed the bottom so you donāt have to be in constant motion - itās easy and convenient to sit still and focus on this comfortable office stool. STANDING DESK STOOL - The height-adjustable Wobble Stool extends from approximately 23-33ā, letting you āperchā near standing height. Itās the perfect companion for your standing desk, giving you a place to take a rest without going all the way back down to sitting..Perch yourself near standing height quickly move between sitting and standing.ADJUSTABLE HEIGHT from 22-33ā- Swivels 360-degrees.FRAMELESS seat with extra cushioning and premium fabric for improved comfort.ROUNDED BASE is stable & lets the stool move with you to burn calories. Special design allows you to sit normally without constant movement.RUBBERIZED BOTTOM is non-skid and weighted so the stool always returns upright.Simple assembly (10 minutes - no tools required).250 lbs. Weight Capacity.13" Diameter Seat.Wobbling active sitting bar and office stool.Adjustable height active sitting office and standing desk stool lets you balance, rock, swivel, move and burn calories throughout the day. Wobble Stool adjusts tall enough to let you comfortably perch near standing height ā itās the perfect standing desk stool!
With innovative recline that provides constant support and a pivoting backrest that automatically adjusts to the needs of the spine, the Freedom chair is exceptionally comfortable and promotes movement throughout the day. Its refined and sculpted cushions were designed to mimic the body's natural contours and decrease pressure point loads for premium comfort. Like all Humanscale chairs, the Freedom chair was designed to look and function like new after years of consistent use..Articulating Headrest: The Freedom chair features a dynamic, articulating headrest to support the head and neck as users recline. It moves with the sitter, so they can change postures without making manual adjustments and stay comfortable in any position..Self Adjusting: Recline Freedom eliminates the need for traditional recline mechanisms, which can be bulky and weigh up to 15 pounds. Instead, Freedom uses the sitter's body weight and the laws of physics to perfectly and automatically adjust recline support for each individual..Synchronous Armrests: Freedom's body-friendly armrests move up and down together, staying with the user during recline for continuous comfort and support. Unlike other chair designs, Freedom's armrests are attached to the back of the chair to ensure synchronous use..Niels Diffrient's "gold standard in office seating" (The New York Times) eliminates levers, dials & other mechanisms to provide physics-driven, ergonomic support that's as simple as it is elegant. Its headrest also moves with you, seamlessly supporting the head and neck in any posture - no manual adjustment required.
Provide a more comfortable seating experience for your staff with this Boss Perfect Posture office chair. Contoured, padded cushions offer softness plus support for all-day comfort, while the durable tweed upholstery stands up to frequent wear and tear. A five-star base and rolling casters make moving this chair from room to room simple. Adjust the seat height up or down to match your desk setup and use the swivel seat to transition from your computer to your filing cabinet or credenza. With its simple silhouette and neutral black color, this Boss Perfect Posture office chair brings understated style to your workplace..Task chair for comfortable office work.Black fabric chair for softness and a professional look.Pneumatic gas lift height adjustment allows you to customize the chair to your specific needs.Overall dimensions: 35-40.2"H x 17.5"W x 25"D.Seat dimensions: 17.5"W x 16.5"D.Armless design allows for easy movement and versatility.Assembly Required.Give staff members a convenient option for furnishing cubicles or reception desks with this Boss Perfect Posture black fabric office chair.
This medical stool is upholstered in durable Grey, easy to clean antimicrobial vinyl, and equipped with a 4-inch thick molded foam seat that provides improved comfort and durability. It has an easy to reach gas lift seat height adjustment lever, providing a 6 inch vertical range to suit your comfort and work environment. Its base has an attractive chrome finish and provides great stability. Hooded double wheel casters make it easy to move and shift directions..Upholstered in durable antimicrobial vinyl for easy maintenance and cleaning. Antimicrobial properties help protect the product from the growth of bacteria..Adjustable seat height with a 6ā³ vertical height range.Attractive chrome finish on the base and gas lift.Dual wheel casters allow for easy movement.Overall Product Dimensions: 24ā³W x 24ā³D x 20.5-26.5ā³H.Height: 20.5ā³ ā 26.5ā³H.Seat Size: 16ā³ W x 16ā³ D.Weight Capacity: 275 lbs.Assembly required.6 year mfg. limited warranty.This stool features a grey antimicrobial, easy to clean seat which is thick and comfortable, making it perfect for medical offices.
National Public Seating 25" - 33" Black adjustable hardboard round lab stool comes with non-marring guide on the end of each leg for easy movement and scratch resistance. Stool features 18-guage steel tubing heavy duty frame..Heavy duty hardboard stool.Natural wood colored hardboard seat, sleek black steel frame.Features Height Adjustable Legs; Adjust In 1ā Increments Up To Eight Additional Inches.14"W x 25-32.5"H.14 Inch diameter round seat set 18-27 inches from the ground.18 gauge steel tubing heavy duty frame.Armless.Built-in foot ring.Weight Limit: 300 lb's.Base stool comes assembled, leg extenders installation requires minimal effort.Meets or exceeds furniture industry (ANSI/BIFMA) standards.10 Year Manufacturer Warranty.Legs feature chrome plated inserts and tilt swivel glides.Hardboard seat is secured with 8 metal rivets to protect against warping, cracking, and chipping.National Public Seating 25" - 33" Black adjustable hardboard round lab stool features several notches in the interior of its legs which provides quick adjustment to the height of the seat.