1. powder coated steel frame 2. high strength nylon connectors 3. patten design of the middle crank Foldind tent : 1.nylon connector ,square / hexagon poles 2.400/500 denier polyester ,PU coating ,UV ,Material :Aluminum , steel Size : standard size : 3X3m 3X4.5m 3X6m other size : 1.5*1.5m , 2*2m , 2.5*2.5m , 6X6m Frame Packing : 1 pc/ctnTop Packing : 8pcs/ctn