Professional AirGrid® Back Managers Chair with Black Mesh Fabric Seat. Thick Padded Contour Seat and AirGrid® Back with Built-in Lumbar Support. One Touch Pneumatic Seat Height Adjustment. 2-to-1 synchro Tilt Control with Adjustable Tilt Tension. Height Adjustable Angled Arms with Soft PU Pads. Heavy Duty Angled Nylon Base with Oversized Dual Wheel Carpet Casters.