ERGONOMIC DESIGN Linkage armrest design gaming chair with USB cable power supply massager that can drive by a USB port on computer, car, power switch or even power bank. MULTI FUNCTION 360° swivel and smooth racing caster wheels for mobility; 90°-180° reclining for working, gaming, reading or napping; 20° controllable rocking and retractable footrest for relaxing; Adjustable seat height, 350 lbs capacity. FOR BOTH GAMER AND OFFICE WORKER Winged back provides multi-point body contact to share the pressure, save your spine and lumbar with ergonomic back and massage support. STURDY CONSTRUCTION & ECO FRIENDLY MATERIAL Alloy frame covered in quality hand sewing PU leather and 6 inches high density foam for comfy. Upgraded LANT gas cylinder and mechanism ensure the use age of the chair. AFTER SELL SERVICES 24/7 customer services provided. 1 month replacement services and 1 year parts quality warranty as promise.