Plastic frame: black; fabric: high quality imported net cloth; armrest: PU armrest; chassis: independent research and development of aluminum alloy wire control polishing; waist support: TPR+ nylon; barometer: electroplating, South Korea KGS brand, three grade 100mm stroke; chair foot: JW aluminum alloy polishing; pulley: 60mm intermediate electroplating; seat cushion is exclusive first full net environmental cushion. (fixed cushions or movable cushions)