Standard FeaturesPneumatic ，MassageSeat ，VentilationSeat Heating，Electric Footrest，Electric Backrest，Electric Slide，Usb/Type-C ，ChargingHidden Small Table Board.Add-On FunctionZero-Power Function (Optional)，360-Degree Rotation (Optional).Material ParametersFrame: High-carbon ，SteelLeather: Nappa Skin-friendly， SeriesFoam: High-elastic Memory ，FoamPlastic: Abs/Pu，Voltage: 12v, Power: 50w，Seat Net Weight: 60kg，Dimension (Carton): 7076100cm，Seat Size: 64 (L)×62 (W)×105(H).