Our Desk Height, Lab Compliant Tractor Stool by Diversified Woodcrafts combines form with function. Inspired by the design of a tractor seat, this Tractor Stool is ergonomically constructed with a tough polyurethane foam that is flexible, yet comfortable. The foam seat also resists punctures, damage from chemical spills and is fully washable. Adjustment is easy with the touch of a lever located just below the seat. Floors are protected with non-marring glides, but if you prefer wheels, select self-braking, non-marring casters with your purchase.