Drafting Seating

People come in all shapes and sizes, which is why the HON Ignition 2.0 ReActiv task stool does as well. From guest and lounge chairs to executive seating, the Ignition 2.0 allows you to mix and match adjustment features, back height, lumbar, and other options to fit your chair to your needs. It's the easy, affordable way to furnish an entire workplace in style and comfort. The Ignition 2.0 fits who you are, where you work and how you work. Upholstered in vinyl for easy cleanability..Task stool is great for sit-to-stand applications.Features construction in black and upholstered in matching black vinyl that is easy to maintain.Adjustable lumbar allows users to tailor their support.Overall dimensions: 45"-52.5"H x 26"W x 22"D.Seat dimensions: 22.88"-31.75"H x 18.5"W x 17.38"D.Back dimensions: 19"H x 17.5"W.Includes fixed arms for supporting your forearms.Tilt with adjustable tension control for comfort.Capacity up to 300 lbs..Assembly required.Meets or exceeds the ANSI/BIFMA standards.ReActiv back features zonal comfort that delivers optimal support and flexibility.Comes with a molded foam seat for better support and added comfort.Healthcare-grade quality vinyl that offers high durability for high traffic with a wipeable surface.Basalt Moxie Vinyl

Outfit your studio with this Flash Furniture ergonomic drafting stool. Height-adjustable arms provide customizable support for your upper body, and the mid-back design lets you lean back and inspect your designs. A seat height-adjustment option makes it easy to raise or lower the seat to match your drafting table. With a swivel seat and integrated foot rails, this Flash Furniture ergonomic drafting stool lets you safely pivot from one task to another..Drafting chair to enhance the look of your personal or commercial space.Patterned black fabric and fire-retardant foam chair for softness and a professional look.Pneumatic gas-lift height adjustment allows you to customize the chair to your specific needs.Overall dimensions: 38.25-42.75"H x 20"W x 20"D.Seat dimensions: 18"W x 16.5"D.Back dimensions: 16"W x 16.5"D.Height-adjustable arms to support the shoulders and upper body.Weight capacity rated up to 250 lbs..5-year manufacturer limited warranty.Create designs or blueprints from the comfort of this Flash Furniture black ergonomic fabric adjustable-arm drafting chair.

The Flash Furniture fabric ergonomic drafting stool is a mobile and adjustable chair that accommodates persons of different body lengths comfortably at the drafting table or countertop. The padded, fabric-upholstered ba ck rest is equipped with a tension adjustment knob that tightens or loosens the accordion-wrapped support stem according to desired posture, and the armrests raise or lower in a 3-inch range. The twin-wheel casters let the Flash furniture small-back erg onomic stool glide smoothly between workstations. The seat-support column on the Flash Furniture drafting stool with arms consists of two inner cylinders that extend the height of the chair in two 4.5-inch increments and a paddle lever that also raises the seat and locks it in place within those ranges. The height-adjustable foot ring provides additional leg range and support for knees and thighs..Padded seat and back with navy fabric upholstery.Sturdy, height-adjustable polyurethane armrests.Height-adjustable foot ring for leg support.The column support for the Flash Furniture fabric ergonomic drafting stool adjusts up or down in two 4.5-inch increments.The back has a tilt tension that's adjustable to support different body weights.The rugged five-legged base of the Flash Furniture drafting stool with arms is fitted with dual-wide rolling casters that make it easy to move between workstations.Fire retardant foam and ANSI/BIFMA standard expectations make this chair safe for workers.Arm height from seat: 8.5-11.5".2-year parts warranty.Navy blue patterned fabric upholstery.Black adjustable polyurethane arms, 8 1/2" - 11 1/2"H from seat.Dimensions: 38 1/4" - 42 3/4"H x 20"W x 20"D.Two seat height ranges with gas cylinder height extenders.5 star nylon base with dual casters.Seat size: 26" - 30 1/2"H x 18"W x 16 1/2"D, back size: 16 1/2"H x 16"W.Assembly required.Black accordion cylinder cover.Cylinder height: 26" - 30 1/2" or 22 1/2" - 27".Padded back and seat.Height adjustable foot ring.CA117 fire retardant foam.Finish: Black nylon.Flash Furniture Navy blue ergonomic drafting stool can support up to 250 lbs of weight capacity while adjustable polyurethane arms and height adjustable foot ring gives extra comfort.

Sit for extended periods of time with this drafting stool. The loop arms offer increased support and comfort during long tasks, and the footrest is removable for extra versatility. Rugged nylon tweed material resists wear and tear. An adjustable lever allows you to easily reach various surface heights, while the 275-pound capacity accommodates different body sizes. This Boss Ergonomic Works black drafting stool is constructed with a durable chassis and has a sleek black color, providing a professional appearance..Drafting stool can be used in a personal or commercial setting.Black tweed stool for softness and a professional look.Pneumatic gas-lift height adjustment allows you to customize the stool to your specific needs.Overall dimensions: 44.5-49.5"H x 25"W x 25"D.Seat dimensions: 17.5"W x 16.5"D.Back dimensions: 14.75"H x 17.5"W.Fixed arms to support the shoulders and upper body.Weight capacity is rated up to 275 lbs..Assembly required.Work on complex tasks comfortably with this Boss Ergonomic Works black adjustable drafting stool.

Solve is the single seating solution that helps a variety of users achieve optimal comfort. This Solve task stool features a breakthrough ReActiv back material designed to provide enhanced back support, and a synchro-tilt with seat slider that lets you find the most comfortable reclining position. A Black adjustable lumbar support allows you to add a little extra lower back support wherever it's most needed. The adjustable footring can be moved up and down to accommodate users of all heights. ReActiv back color is Charcoal, and seat vinyl color is Basalt..ReActiv back color is Charcoal; seat vinyl color is Basalt.Ideal for workstations, touchdown areas, collaborative environments, meeting rooms and more.ReActiv back flexes to provide a firm fit.ReActiv back keeps the body cool by enabling continuous airflow.Seat glides forward when the back reclines to provide a more natural posture.Synchro-tilt mechanism reclines the back at a higher ratio than the seat for proper back alignment.Waterfall seat edge promotes better leg circulation.Pneumatic seat height adjustment moves the seat up and down to adapt to various body heights.Upright tilt lock secures the chair in the full upright position.360-degree swivel provides freedom of movement in any direction.Frame and five-star base provide maximum durability and easy maintenance.Warranted for users up to 300 lbs..Adaptable scale and controls supports multiple users and environments.HON Solve Mid-Back Task Stool | Synchro-Tilt with Seat Slider | Armless | Charcoal ReActiv Back | Black Adjustable Lumbar | Basalt Vinyl Seat

People come in all sorts of shapes and sizes, so why choose an office stool that's one-size-fits-all? It doesn't matter if you're big or small, Ignition is designed to fit your body, your environment, your style, and the way you get things done with optimal support and remarkable intuition. Make your space work with Ignition 2.0..Relax with advanced reclining capabilities, designed for optimal spine alignment.Customize your support with efficient adjustable lumbar reinforcement.Optimize your airflow with a cool, breathable mesh back.Discover all-day comfort with a contoured seat.Stay secure and stable with upright tilt lock.Free yourself with total swivel capabilities.Maximize your mobility with nylon hard wheels that make carpet navigation a breeze.Rise up or go low with a simple seat-height adjustment mechanism.Keep things hassle-free with quick delivery.Tested to quality standards of HON experts, and backed by The HON Company's full lifetime warranty.HON Ignition 2.0 Mesh Back Task Stool | Limited Synchro-Tilt Control | Adjustable Lumbar Support | Armless | Black Mesh Back | Basalt Seat Vinyl

When you spend more time at your desk than anywhere else it's time to invest in a top-notch chair. This high quality drafting chair is constructed with a higher seat range to reach counters and bars. Featuring breathable mesh material and extra padding throughout, this drafting stool will keep you cool and comfortable. Our adjustable-height drafting chair effortlessly raises and lowers via an easy-to-operate pneumatic adjustment lever while the integrated chrome foot ring provides a comfortable place for your feet to rest. The waterfall front seat edge helps reduce pressure on the lower legs. Padded armrests flip up and out of the way. Synchro-tilt control lets the chair's seat and back recline at different rates and the contoured back with lumbar support may help to alleviate strain. 360 degree swivel paired with dual-wheel casters allows you effortless mobility. Spills clean up easily with a solvent based cleaner, no water required..Drafting Stool.Color: Black/Black Frame/Material: Mesh, Metal, Plastic.Ergonomic; Lumbar Support.Overall Dimensions: 25"W x 23"D x 42.5" - 50"H.Seat Dimensions: 24.5" - 32"H x 19"W x 19"D.Back Dimensions: 18.25"W x 21"H.Flip-Up Arms; Arm Height: 6.75"H.Tilt Tension Adjustment Knob.300 lbs. Weight Capacity.Assembly Required.Rated for Commercial Use.5 Year Limited (non moving metal parts) 2 yr Parts.Modern Adjustable Drafting Chair for professional and home offices.Transparent Black Mesh Back and Seat allows air flow for comfort.Mid-Back Design with Built-In Lumbar Support promotes good posture.2-to-1 Locking Synchro Tilt Adjustment tilts the back and seat in unison for a comfortable seating position.Tilt Tension Adjustment Knob adjusts the chair's backward tilt resistance.Waterfall Swivel Seat reduces pressure on your legs.Pneumatic Seat Height Adjustment provides a custom seating experience.Padded Flip-Up Arms relieve pressure from the neck and shoulders, flip up out of the way when needed.5-Star Black Nylon Base with Dual-Wheel Casters and 19.5" Chrome Foot Ring.Swivel drafting stool with multiple adjustment ideal for long workdays in your home office or place of business.If you don't work at a standard desk height you need an adjustable drafting chair with integrated foot ring for a fully customized seating experience.

Discover a new way of office seating with an ergonomic drafting chair. With a rise in standing desks you need a compatible office chair to travel the distance with you. Enjoy the comforts of an ergonomic office chair in a taller frame to meet the needs of students and professionals working at above average desk heights. A tall desk chair is perfect for in banks, architectural firms, and art studios. This draft chair features a ventilated mesh back with lumbar support and convenient lever to adjust the seat height and lock the seat in place to prevent you from rocking. From standing desks to drafting desks this ergonomic drafting chair with contoured padded swivel seat will provide you with the comfort that you need to suit your work environment. Let this tall task chair deliver comfort while you scratch items off your to-do list..Drafting Stools.Color: Light Gray Mesh/Black Frame; Material: Foam, Mesh, Metal, Plastic, Plywood, Polyester.Ergonomic.Overall Dimensions: 25.25"W x 24.5"D x 41.5" - 49.5"H.Seat Dimensions: 23.5" - 31.5"H x 19.5"W x 18"D.Back Dimensions: 15"W x 21"H.Arm Height: 7.5" - 10"H.Weight Capacity: 250 lbs; Recommended Usage: 6-8 Hours.Assembly Required.Rated for Commercial Use.5 Year Limited (non moving metal parts) 2 yr Parts.Contemporary Drafting Stool with Height Adjustable Padded Arms.Mid-Back Design with breathable mesh material.Curved back with lumbar support.Tilt Lock Mechanism rocks/tilts the chair and locks in an upright position.Tilt Tension Adjustment Knob adjusts the chair's backward tilt resistance.Contoured Light Gray Mesh Upholstered Seat with CAL 117 Fire Retardant Foam.Pneumatic Seat Height Adjustment.Height Adjustable 20" Round Chrome Foot Ring.5-Star Nylon Base with Dual-Wheel Casters.If you don't work at a standard desk height you need a drafting chair that is adjustable with a draft kit to comfortably rest your feet, offering you good posture.

Volt seating from HON offers upscale style, full-scale comfort and impressive quality at a surprisingly affordable price. This task stool has generous seat and back cushions that are contoured for comfort. It is ideal for sit-to-stand applications. Height-adjustable arms can be ordered separately. Seat and back upholstery color is Black..Chair Type: Stool.Overall Dimensions: 50"H x 27.0"W x 29.5"D.Back Material: Fabric.Armless.Polyurethane upholstery has the look and feel of leather; color is Black.Inner seat shell is molded from a wood composite with high recycled content.Seat and back are designed to support both large and smaller users.Frame color is Black.Adjustable footring moves up and down and locks to adapt to various body heights.Extended range pneumatic seat height adjustment moves up and down to accommodate sit-to-stand activities.360-degree swivel provides freedom of movement in any direction.Excellent for sit-to-stand applications.Upholstered seat and back are contoured to conform to the body.Partial Assembly.Backed by the HON Full Lifetime Warranty.Optional height-adjustable arms to support the shoulders and upper body.Model Option: H5725.H.UR10.T.Generous scale and attractive style for any organization seeking top performance with a budget

Flash Furniture Gray fabric ergonomic drafting stool comes with adjustable polyurethane arms. Height adjustable foot ring provides two seat height ranges with gas cylinder height extenders for your comfort seating..Gray Fabric Upholstery.Black Adjustable Polyurethane Arms.Dimensions: 38 1/4'' - 42 3/4''H x 20''W x 20''D.Seat Size: 26 - 30 1/2''H x 18''W x 16 1/2''D; Back Size: 16 1/2''H x 16''W.Arm height from seat: 8 1/2'' - 11 1/2''H.Weight Capacity: 250 lbs..Small Back Drafting Stool.Padded Back and Seat.Two Seat Height Ranges with Gas Cylinder Height Extenders.Cylinder Heights: 26'' - 30 1/2'' or 22 1/2'' - 27''H.Black Accordion Cylinder Cover.Height Adjustable Foot Ring.Heavy Duty Nylon Base.Dual Wheel Casters.CA117 Fire Retardant Foam.Meets or exceeds all ANSI/BIFMA standards.Warranty: 2 years parts only.Some Assembly Required.Suitable For Commercial Use.Flash Furniture Gray fabric ergonomic drafting stool can withstand 250 lbs of weight capacity while the adjustable polyurethane arms and height adjustable foot ring provides extra comfort.

Use this task stool to provide a seating solution for anyone in your office. The adjustable height and ability to hold up to 300 pounds lets you customize it for comfort, and rolling casters allow for easy movement around your workspace. The stretch mesh back and waterfall seat edge make this HON Solve fabric task stool comfortable to sit in at all times..Computer and desk stool to enhance the look of your personal or commercial space.Ink mesh back and fabric seat.Lumbar support, seat height adjustment with tilt tension, and tilt lock offer customized comfort.Overall dimensions: 52.75"H x 29.5"W x 29.5"D.Seat dimensions: 19"W x 19"D.Height-adjustable arms to support the shoulders and upper body.Synchro tilt mechanism for a smooth recline with tilt tension and tilt lock for secure support.Weight is rated up to 300 lbs..Assembly required.Lifetime manufacturer limited warranty.Meets or Exceeds ANSI/BIFMA Standards.Model Option: HSLVSMM.Y1.A.H.IM.COMP10.BL.SB.T.Sit comfortably at your desk during long working sessions with this HON Solve black mesh mid-back task stool.

Wobble Stool - an elegant, durable and comfortable balance chair designed for the modern office. ACTIVE SITTING CHAIR - Wobble Stool’s patented base encourages you to rock, swivel, tilt, lean and move while sitting. We designed the bottom so you don’t have to be in constant motion - it’s easy and convenient to sit still and focus on this comfortable office stool. STANDING DESK STOOL - The height-adjustable Wobble Stool extends from approximately 23-33”, letting you “perch” near standing height. It’s 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 22-33”- 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 – it’s the perfect standing desk stool!

Adjust the backrest, height, and arms on this office chair to match and meet your desk. The well-padded fabric seat delivers reliable comfort during long working sessions or meetings, while the adjustable lumbar support helps keep your lower back in perfect alignment. The contemporary design, black mesh back and chrome accents of this EuroTech drafting chair add a sophisticated look to any office setting..Drafting chair can be used in a personal or commercial setting.Black mesh fabric back and fabric seat.Comfortably contoured and padded waterfall seat.Overall dimensions: 40-49"H x 25"W x 24"D.Seat dimensions: 20.5"W x 19.3"D.Back dimensions: 20"H x 19.7"W.Width- and height-adjustable arms allow you to rest your forearms comfortably.Assembly required.2.8" ratchet back height adjustment.Includes both casters and glides.GREENGUARD certified.Outfit your workspace with this EuroTech Apollo black mesh drafting chair for a supportive, customized seat.

Discover a new way of office seating with an ergonomic drafting chair. With a rise in standing desks you need a compatible office chair to travel the distance with you. Enjoy the comforts of an ergonomic office chair in a taller frame to meet the needs of students and professionals working at above average desk heights. A tall desk chair is perfect for in banks, architectural firms, and art studios. This draft chair features a ventilated mesh back with lumbar support and convenient lever to adjust the seat height and lock the seat in place to prevent you from rocking. From standing desks to drafting desks this ergonomic drafting chair with contoured padded swivel seat will provide you with the comfort that you need to suit your work environment. Let this tall task chair deliver comfort while you scratch items off your to-do list..Drafting Stools.Color: Black Mesh/White Frame; Material: Foam, Mesh, Metal, Plastic, Plywood, Polyester.Ergonomic.Overall Dimensions: 25.25"W x 24.5"D x 41.5" - 49.5"H.Seat Dimensions: 23.5" - 31.5"H x 19.5"W x 18"D.Back Dimensions: 15"W x 21"H.Arm Height: 7.5" - 10"H.Weight Capacity: 250 lbs; Recommended Usage: 6-8 Hours.Assembly Required.Rated for Commercial Use.5 Year Limited (non moving metal parts) 2 yr Parts.Contemporary Drafting Stool with Height Adjustable Padded Arms.Mid-Back Design with breathable mesh material.Curved back with lumbar support.Tilt Lock Mechanism rocks/tilts the chair and locks in an upright position.Tilt Tension Adjustment Knob adjusts the chair's backward tilt resistance.Contoured Black Mesh Upholstered Seat with CAL 117 Fire Retardant Foam.Pneumatic Seat Height Adjustment.Height Adjustable 20" Round Chrome Foot Ring.5-Star Nylon Base with Dual-Wheel Casters.If you don't work at a standard desk height you need a drafting chair that is adjustable with a draft kit to comfortably rest your feet, offering you good posture.

Discover a new way of office seating with an ergonomic drafting chair. With a rise in standing desks you need a compatible office chair to travel the distance with you. Enjoy the comforts of an ergonomic office chair in a taller frame to meet the needs of students and professionals working at above average desk heights. If you're seeking an office chair to work at above standard heights in environments, such as banks, architectural firms, art studios and other creative spaces a mesh back drafting stool is your perfect match. This draft chair features a ventilated mesh back with lumbar support to keep you cool along with a convenient lever to adjust the seat height and lock the seat in place to prevent you from rocking. Turning the tilt tension adjustment knob increases or decreases the amount of force needed to rock or recline. From standing desks to drafting desks this ergonomic drafting chair with contoured padded swivel seat will provide you with the comfort that you need to suit your work environment. Let this tall task chair deliver comfort while you scratch items off your to-do list..Drafting chair can be used in a personal or commercial setting.Breathable black mesh back with padded mesh seat.Ergonomic chair provides lumbar support.Overall dimensions: 41.34-49.6"H x 25.24"W x 24.5"D.Seat dimensions: 23.5-31.5"H x 19.5"W x 18"D.Back dimensions: 19.5"W.Tilt with adjustable tension control for comfort.Rated for up to 249 lbs..Assembly required.Meets or exceeds ANSI/BIFMA standards

Drafting chairs aren't just for architects and engineers anymore. Whether your work surface is above standard height, or you need to be at eye level with clients or customers, this draft chair is essential for your workspace. The liberally padded, fabric upholstered seat will cushion you throughout your workday while the breathable mesh back material allows air to circulate to keep you cool and comfortable. Chair easily swivels 360 degrees to get the maximum use of your workspace without strain. Adjust the height of the seat, arms and foot ring for a custom fit to ease pressure on the shoulders, neck and back of the legs while promoting good posture which minimizes the risk of pain. This modern drafting chair is sure to make a positive impact whether it is used in the home or at the office..Contemporary Drafting Chair for Home Office or Professional Workspace.Color: Black; Material: Fabric, Foam, Mesh, Metal, Plastic, Polyester.Ergonomic Design Featuring Built-In Lumbar Support.Overall Dimensions: 26.25"W x 26"D x 43" - 49.25"H.Seat Dimensions: 26.5" - 32.5"H x 18"W x 18"D.Back Dimensions: 18.5"W x 18.5"H.Height Adjustable Padded Arms; Arm Size: 34-42.5"H from floor; 7.5-10.25"H from seat.Care Instructions: Wipe Clean with a Damp Cloth.Rated for up to 250 lbs. Based on 6-8 Hours Use.Assembly Required.Meets or Exceeds ANSI/BIFMA Standards; Rated for Commercial Use.Warranty: 1 Year Limited.250 lb. Weight Capacity.Mid-Back Design.Flexible Mesh Back.Padded Black Fabric Upholstered Seat with CAL 117 Fire Retardant Foam.Waterfall Seat reduces pressure on your legs.Swivel Seat.Foot Ring Size: 20.5" Diameter.Pneumatic Seat Height Adjustment, Height Adjustable Black Metal Foot Ring.Heavy Duty Nylon Base, Dual Wheel Casters.If you don't work at a standard desk height you need a drafting chair that is adjustable with a draft kit to comfortably rest your feet, offering you good posture.

This medical stool is upholstered in durable Grey, antimicrobial vinyl, and equipped with a 4-inch thick molded foam seat cushion that provides improved durability. It is attached with an easy to reach gas lift seat height adjustment lever, providing a vertical range of 6-inch to suit your personal comfort and work environment. The stool’s 20-inch chrome footring provides added foot and leg support. The hooded double wheel casters make it easy to move and shift directions..Upholstered in durable Caressoft vinyl.Easy maintenance and cleaning.Adjustable seat height with a 6" vertical height range.Attractive chrome finish on the base, foot ring and gas lift.Seat Size: 16"W x 16"D.Hooded double wheel casters.Dimensions: 28-34"H x 25"W x 25"D.Weight capacity: 275 lbs..Assembly Required.Manufacturer's 5-year limited warranty.Ergonomically designed to emulate the natural shape of the spine to increase comfort and productivity

Experience the padded breathable mesh back and mid-back support of this chair. The adjustable foot ring keeps your legs supported and the tilt-lock mechanism allows the easy transition from a seated position to reclined one. This versatile drafting chair has flip-up arms that can be positioned out of the way when more space is needed and pneumatic seat-height adjustment, allowing it to fit under high or low tables and desks. With its swivel seat and built-in lumbar support, this Flash Furniture drafting chair is perfect for workspaces that require flexible and comfortable seating..Task chair is a smart addition to any office space.Black mesh upholstery allows air to circulate.This chair provides lumbar and foot support.Overall dimensions: 43.25-50.75"H x 24.5"W x 25.5"D.Seat dimensions: 20.25"W x 19"D.Flip-up arms provide added comfort.Locking-tilt with adjustable tension control for comfort.Weight is rated up to 250 lbs..Enhance workspace comfort with this Flash Furniture mid-back mesh drafting chair's adjustable foot ring and flip-up arms.

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 1” 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.