Versatile Stool: Ideal for a wide range of uses at work and home; Round-shaped armless design for universal usage Adjustable: Attached with an easy to reach gas lift seat height adjustment lever, providing a vertical range of 6” to suit your personal preference Weight capacity and MAS Certified Green: 275-lb. weight limit; MAS Certified Green for low-emitting materials Upholstery and Base: Durable antimicrobial black vinyl is easy to clean and maintain; Chrome 25” base and 2” hooded double wheel casters make it easy to move and shift directions Dimensions and Warranty: Overall dimensions: 20.5"-26.5"H x 24"W x 24"D; Seat height: 20.5"-26.5"H; 6-year manufacturer limited warranty; Assembly required