Iron Frame：1.2mm thickness Material : Normal Sponge（back）+ shaping sponge（seat ） PVC leather Nylon feet Armrest：2D lift armrest Angle adjuster/back lever: 166 adjuster Gas rod: Level 3 N.W.: 18kg-20.5kg Cushion size：width40cm，depth50cm Carton size: 82*65*33CM