Double-layer sponge wrapping and PVC + fiber leather wrapping, not easily water soluble 2D armrests with PU surface, able to be adjusted 7cm in height as well as rotated horizontally 90°-175° backrest tilting with gaming chair adjuster on the side Adjustable and removable headrest and waist support nylon five-star feet?hydrostatic bearing Silent and smooth nylon wheels, wear-resistance 360° rotation, free height adjustment, universal casters Seat width?50cm Seat depth?46cm Minimum seat height with the gas rod at lowest position?40cm Maximum seat height with the gas rod at highest position?50cm Backrest height?88cm