The main material of the cushion and the back of the chair is anti-static PVC; the main material of chassis, the back iron, the five-star foot is chrome iron; the main material of base and carbon line wheel is gray carbon line PC; the main material of screw is stainless steel; the main material of plunger pads is anti-static plastic; riding ring is made of stainless steel. Stainless steel tread ring.
