Product Features[Adjustable] The back can be adjusted 175 freely, and the retractable footrest supports your feet, providing you with the most comfortable angle and posture.The chair easily swivels 360 degrees to get the maximum use of your workspace.[Ergonomic design] The four-section layered backrest design, support your back''s curve make you relax your waist.[Material ] Selected high quality PU leather, breathable and wear-resistant. Delicate and comfortable touch.• High bearing alloy five star foot, anti-rust, five point support seat smooth and firm.• PU wheel, no sound rolling, good grip, not easy to slip, more wear-resistant, comfortable performance.Product Details•  Material : iron plating five-star foot + Mute pulley + high-density sponge +PU leather +PU wheel• Total height adjustable from 47.64"-50.39"• Seat height 18.90"• Seat depth 22.05"• Seat width 18.11"•  Net Weight : 51.8lb s•  Gross Weight 56.8lb s•  Maximum user Weight tested for 500 lb s Self-assembly: 2 people recommended Assembly Instruction: Included in the box Package Size 35.5• 24.8• 18.9 inches No. of Package(s) 1 Wipe clean with a soft cloth.No warranty service