Durable high grade corrosion resistant steel truss with hardened through bolts is pre-assembled and can be installed without tools. The canopy tent tarpaulin is made of high density(210D)Oxford polyester fiber with an upgraded silver-plated PU lining that provides UPF 50+ UV protection and blocks 99% of harmful sunlight. Heat-sealed seam, the latest technology in the industry, prevent water penetrate from seams, 100% waterproof. The pop up tent includes waterproof sealing tape to protect against water pooling in wet conditions.