This versatile polyurethane stool is perfect for any home or office work area that needs draftingheight. Ideal for extended sitting periods, it has a swivel feature, pneumatic height control, and an adjustable height between 18" and 26". The 13" diameter seat is made of super-soft molded foam. Also features a stable, 22" diameter, five-star base on hooded casters. Puncture resistant, easy to clean, and maintenance free. Black.