Features: High-density rebound sponge, made of environmentally friendly materials, with strong rebound, skin-friendly and breathable Double-layer sponge wrapping and PVC + fiber leather wrapping, not easily water soluble Triangle fixed armrests 90-125backrest tilting Nylon five-star feethydrostatic bearing 800kg Silent and smooth nylon wheels, wear-resistance 360 rotation, free height adjustment, universal casters Specifications: - Seat width50cm Seat depth47cm Minimum seat height with the pneumatic rod at lowest position42cm Maximum seat height with the pneumatic rod at highest position52cm Backrest height70cm G.W.:16.5kg N.W.:14.5kg Product size:600*720*1070-1160mm Carton size:73*34*66cm