Flash Furniture HERCULES Series Big & Tall 500 lb. Rated Black Fabric Executive Swivel Chair with Arms Contemporary Big & Tall Office Chair 500 lb. Weight Capacity. Seat Size: 22.5 Inch W x 24 Inch D High Back Design with Headrest Black Fabric Upholstery. Arm Height From Seat: 8 Inch H Built-In Lumbar Support Tilt Lock Mechanism Tilt Tension Adjustment Knob 3'' Thick Foam Padded Seat 22.5'' Wide Seat Waterfall Seat promotes healthy blood flow