【Unique design】 Pure black office chair with carbon fiber style pu leather scattered all over, stylish and wearproof; steel frame and five star base make a superb stable structure. 【Ergonomic design】 This computer chair designed with ergonomic construction with the strong metal frame provides extra comfortable sitting experience. 【High-Quality】 This gaming chair verified By SGS,UL and BIFMA is perfect for office, home, conference occasion and computer gaming room. 【Multi-Function】 360 Degree Swivel and Multi-direction Wheels; Seat-height adjustable; 90~170°reclining; Smooth-rolling rubber casters; Removable headrest pillow and lumbar cushion. Load Capacity:300 pound maximum weight capacity. 【Warranty Policy】 Free exchange for installation problems, damage and missing parts within1 year. Tilt Locking mechanism 90-170 degrees angle adjuster Height-adjustable gas spring cylinder Sturdy five star base Easy to move with color caster wheels Orthopedically and ergonomically designed Premium PU leather material Headrest pillow and lumbar cushion are included Load capacity up to 300 lbs Sitting height: 17.7-20.9 inch Backrest dimension: 20"X30.5"(LXW)