This ergonomic stool will make a great fit in the office, classroom, doctor's office, hospital or home garage. The triangular saddle seat lowers the thighs, opens up the hips and positions the spine into a healthy curve. The small frame design makes it easy to maneuver around small work spaces with ease. Backless stool with curved black saddle seat. Seat angle adjustment. Pneumatic seat height adjustment. Heavy duty nylon base. Dual wheel casters. CA 117 fire retardant foam. Offex