Flash Furniture HERCULES Series 24/7 Intensive Use Big & Tall 350 lb. Rated Black Fabric Multifunction Swivel Chair with Foot Ring Contemporary 24/7 Multi-Shift Use Office Chair 350 lb. Weight Capacity High Back Design Built-In Lumbar Support Triple Paddle Control Mechanism Ratchet Back Height Adjustment Back Adjusts 3'' up and down Infinite-Locking Back Angle Adjustment 2-to-1 Synchro Tilt Adjustment Tilt Tension Adjustment Knob