? Independent seat and back adjustments ? Puncture- wear-resistant polyurethane seat back ? 275 lb. weight capacity The black Interion? 5-Way Adjustable Ergonomic Stool is built to offer comfortable seating in any office or shop environment. It features a sturdy steel frame and soft, textured polyurethane seat back rest material that is resistant to wear punctures that provide a long service life. To customize it for optimum comfort, most parts of the chair can be easily adjusted including the seat height, backrest footrest heights, and the seat backrest angles. Its 5-point wheeled base remains stable even while moving or leaning back and each point has a hooded caster that prevents dirt debris from jamming the wheels, ensuring smooth rolling. Some assembly required. Limited 2-Year Warranty. Contoured back with lumbar support Waterfall seat edge improves comfort leg circulation Five sets of 2" hooded dual-wheel swivel casters for easy mobility 22" to 32-1/4" pneumatic seat height adjustment 38" to 48-1/2" back height adjustment 8" to 18-1/2" foot ring height adjustment Integrated hand grip on back rest Includes nylon glides that replace the wheels for stationary use ANSI BIFMA X5.1-2017 certified Weights Dimensions Weight Capacity 275 lbs Weight 37 lbs Seat Width 18-1/2 in Seat Depth 18 in Seat Height 22 - 32-1/4 in Min Seat Height 22 in Max Seat Height 32-1/4 in Base 5-Star Base Height Adjustability Type Pneumatic Base Diameter 24 in Caster Diameter 2 in Back Width 16-1/2 in Back Height 13 in Product Details Assembly Required Yes Frame Color Family Black Tilt Type Independent Seat and Back Antimicrobial No Arm Type Armless Manufacturers Part Number 250626 Collection Traditional Brand Interion By Global Industrial Type Task Stool Color Black Series Interion Caster Type Dual Wheel Mobile or Stationary Mobile Footrest Included Yes Seat Color Family Black Casters Included Yes Package Quantity 1 Description Ergonomic Stool Frame Material Steel Back Type Mid Back Seat Material Polyurethane Warranty Warranty 2 yr Compliance Certifications Certifications ANSI/BIFMA X5.1-2017