Breathable Screen Back and Black Fabric Seat with Builtin Lumbar Support One Touch Pneumatic Seat Height Adjustment Locking Tilt with Adjustable Tilt Tension Height Adjustable PU Padded Arms Heavy Duty Titanium Finish Base with Dual Wheel Carpet CastersBreathable Screen Back and Black Fabric Seat with Builtin Lumbar SupportOne Touch Pneumatic Seat Height AdjustmentLocking Tilt with Adjustable Tilt TensionHeight Adjustable PU Padded ArmsHeavy Duty Titanium Finish Base with Dual Wheel Carpet Casters