Mesh Mid Back Chair with Titanium Finish Accents. Thick Padded Contour Black Fabric Seat and Black Mesh Back with Built-in Lumbar Support. One Touch Pneumatic Seat Height Adjustment. 3 Position Locking 2-to-1 synchro Tilt Control with Adjustable Tilt Tension. Width Adjustable and Ratchet Height Adjustable Arms with PU Pads. Heavy Duty Titanium Finish Base with Dual Wheel Carpet Casters.