Space Series Big & Tall Executive Breathable Mesh Seat and Back Chair / Breathable Mesh Seat and Back with Adjustable Lumbar Support / One Touch Pneumatic Seat Height Adjustment / 3 Position, 2-to-1 Synchro Tilt Control with Adjustable Tilt Tension / 2-Way Adjustable Arms / Heavy Duty Black Finish Steel Base with Dual Wheel Carpet Casters and Black End Caps / Weight limit up to 400 lbs.