Plastic frame: black;Fabrics: high quality imported mesh;PU armrest;Chassis: independently developed aluminum alloy wire control polishing;Waist: TPR+ nylon;Pneumatic bar: electroplating, KGS brand in South Korea, with third-level 100mm travel;Chair feet: JW aluminum alloy polishing;Pulley: 60mm intermediate electroplating, the seat pad adopts the exclusive first all-net environmental protection cushion.