Flash Furniture HERCULES Series 24/7 Intensive Use Big & Tall 500 lb. Rated Black Fabric Executive Swivel Chair with Loop Arms Contemporary 24/7 Multi-Shift Use Office Chair 500 lb. Weight Capacity High Back Design with Headrest Built-In Lumbar Support. Arm Height From Seat: 7 Inch H Tilt Lock Mechanism. Arm Height From Floor: 27.75 - 31.5 Inch H Tilt Tension Adjustment Knob. Minimum seat height: 21.5 inches, maximum seat height: 25.5 inches Black Fabric Upholstery 4'' Thick Foam Padded Seat 22'' Wide Seat Swivel Seat