Plastic frame: black; fabric: high quality imported net cloth; armrest: PU armrest; chassis: independent research and development of aluminum alloy linear control polishing; barometer: Korea KGS brand, three grade 100mm stroke; chair foot HM9901 aluminum alloy polishing; pulley: 65mmPU. seat cushion is exclusive first full net environmental cushion. (Mobile comfort pad or fixed comfort. Pad selection

Product function: independent research and development of linear control chassis, can choose memory lock or angle locking; back pad back angle adjustment, humanized back tightness adjustment, four section height adjustment; waist with automatic elastic support; seat height, seat depth adjustment; 4D no button handrails adjustment (high and low, back, left and right, left and right, angles)