Product details:

Swivel stool with contoured seat and back for comfort and support. Polyurethane upholstery is puncture and wear resistant and easy-to-clean. Seat offers a waterfall edge to help blood circulation to the legs. Ergonomic adjustments of this work stool include seat/back angle adjustments, back angle adjustment knob and 22" to 32-1/2" pneumatic seat height adjustment. Seat measures 18-1/2"W x 18"D x 2" thick. Back measures 16-1/2"W x 13"H. Stable 5 blade base includes both casters for mobility and glides for stationary use. Easy Assembly.