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 Gunmetal Finish Aluminum Base with Dual Wheel Carpet Casters and Black End Caps / GREENGUARD Indoor Air Quality Certified / Weight limit up to 400 lbs.