【DOUBLE COMFORT】: Ergonomic design with free USB electric massager, headrest pillow wider and thicker armrests with ergonomic shape, larger-size seat cushion, adjustable footrest. 【HIGH-SECURITY】:Sturdy durable frame provide you a safety feeling prevent pain for a long time sitting.Explosion-proof gas spring of international standards, heavy duty chair base with castors make a superb stable structure.(Maximum capacity: 300LB) 【MULTIFUNCTION】:Chair Height and Rocking Function Adjustable ,360 degree Swivel.Lockable tilt positions easy to install. 【GOOD QUALITY MATERIAL】:High-Quality PU leather and thicker spong on front and back, high resilience and permeability padding feels great, easy to clean. 【EXCELLENT AFTER-SALES SERVICE】:Free replacement or money back for quality reason within 30 days, Any dissatisfaction with our products or service, please contact us at any time. 【Size】: √Overall Height: 46.8"-50" √Seat Height: 17.7"-21" √Seat Area: 20.8"(w)x27.5"(d) 【Package included】: 1×Gaming chair 1×Headrest cushion & lumbar cushion (USB electric massager contained) 1×Installation instruction 1×Adjustable footrest PLEASE NOTICE ♦: Please check the bottom of the seat before installation. All the screws are screwed in advance in case of missing during transportation.