The 327 Foot Operated Stool with Curved Ratcheting Body Support is premier line of foot-operated pneumatic seating. The vertically adjustable curved body support ratchets inward and locks, and releases outward to exit. Help maintain a sterile environment by adjusting the seat height hands-free to your most comfortable working position using a 360° foot-operated ring. Dual wheel casters make it easy to maneuver quietly over all types of surfaces without damaging or marring the floor. Treat yourself to a soft and supportive seat with premium line of seating.