Thick Padded Mesh Seat and AirGrid Back with Builtin Lumbar Support One Touch Pneumatic Seat Height Adjustment Adjustable Metal Foot Ring Nylon Base with Dual Wheel Carpet CastersThick Padded Mesh Seat and AirGrid Back with Builtin Lumbar SupportOne Touch Pneumatic Seat Height AdjustmentAdjustable Metal Foot RingNylon Base with Dual Wheel Carpet Casters