Intermediate Stool Intermediate Stool. Self Skinned Urethane Seat. One Touch Pneumatic Seat Height Adjustment. Heavy Duty Nylon Base with Dual Wheel Carpet Casters. Free Ground Shipping (UPS / FedEx / Curbside) KH Series collection Part of the Work Smart series Overall Dimensions: 22.5"w x 22.5"d x 24.75"h Seat Height: 17.25"-24.75" Self Skinned Urethane Seat One Touch Pneumatic Seat Height Adjustment Heavy Duty Nylon Base with Dual Wheel Carpet Casters