- Contemporary Big & Tall Office Chair- 400 lb. Weight Capacity- High Back Design with Headrest, Built-In Lumbar Support- Tilt Lock Mechanism rocks/tilts the chair and locks in an upright position, Tilt Tension Adjustment Knob adjusts the chair''s backward tilt resistance- 3" Thick Foam Padded Seat with CAL 117 Fire Retardant Foam- 22" Wide Swivel Seat, Waterfall Seat reduces pressure on your legs- Pneumatic Seat Height Adjustment- Heavy Duty Chrome Base- Dual Wheel Casters