Deluxe Chair with Charcoal VeraFlex� Back and VeraFlex� Fabric Seat. Breathable VeraFlex� Back and VeraFlex� Fabric Seat with Built-in Lumbar Support. One Touch Pneumatic Seat Height Adjustment. 2-to-1 Synchro Tilt Control with Adjustable Tilt Tension. Height and Width Adjustable arms and PU Pads. Heavy Duty Angled Nylon Base with Oversized Dual Wheel Carpet Casters.