1 GS TUV certificate 2 Steel Frame + Waterproof fabric 3 Convertible in bed 4 UV resistant, colourfast, stretch resistant GS test garden swing chair Steel frame with powder coated finish Main steel tube: φ50mm, φ28mmFabric: waterproof polyester cover and 7cm thickness cushion Bottom fabric:600*300D oxford Mail Order Packing Standard We have GS TUV certificate for this item