1.This Black office chair using high-density sponge and PU Leather. softer and friendlier to the skin,and the curved high back perfectly supports your whole body to reduce the back pain caused by long-term sedentary. 2.The lumbar support and headrest of the computer chair is ergonomically high-back designed closed to human spine curve, supporting waist and head just in place.3.Executive Chair Adjustable seat height can satisfy with different people in needs of height.  4.The five dual casters on the durable chrome base allow for easy movement on a variety of floor surfaces. 5.The rocking chair is 90°to 120°swingable in rocking mode.1.Located in Jiujiang, Foshan, HERO OFFICE FURNITURE is a professional manufacturer and exporter of office chairs&gaming chairs over 10 years. 2.Factory area:10000 sqm; 150 workers; 720 x 40HQ per year. 3.Our price are very competitive. For some plastic accessories, we open the moulds and reduce the cost as much as we can. 4.Low MOQ for our standard products. 5.We arrange production strictly according to the delivery time required by customers and ship the goods on time. 6.We have a professional QC team to inspect raw material, semi-product and finished product, to make sure the good quality for each order. 7.Warranty for our standard product: 3 years. 8.Our service: faster response, reply emails within one hour. All sales check emails by mobile phone or laptop after work-off.6.This office computer chair is made with high density foam for comfort and support, has beautiful and stylish PU leather upholstery, and has a modern style that will fit in with any office decor, so it will be a welcome addition to any home or office.. 7.The leather office chair comes with all hardware & necessary tools. Follow the chair instruction, you'll found easy to assemble, and computer chair estimated assembly time in about 15-20mins.