HOMREST 20x40 Large Canopy Tent has strengthened 2" galvanized steel centre poles with 1.5mm thickness and 1.5" sidewall poles for durability. Even in bad weather, the galvanized steel structure is strong and rust-resistant. For visitor safety and comfort, this big canopy tent is waterproof, UV-resistant, and manufactured of 480GSM flame-retardant PVC. It repels rain and sun damage for comfort in any weather. This 40' L x 20' W x 13' H tent holds 160 people, making it great for large parties. Assembly is simple with the step-by-step instructions and video. For easy storage and transport, this large outdoor canopy party tent comes in two compact boxes with 600D Oxford carrying bags.