Ground nails are essential to improving stability on grassy surfaces, while expansion screws do the same for cement surfaces; Take preventative measures to avoid wind when wind speed reaches 25 mph or higher. 100% waterproof top uses 140g PE cloth; The 140g high-quality PE removable sidewalls and zipper doors grant great cross ventilation on hot days, and can block 99% of harmful UV rays; 140-gram PVC windows provide more brightness for the tent; Extra durable 4x600D Oxford fabric bags are included for easy storage and reuse. The high quality, heavy-duty white powder coated galvanized steel structure is rust and corrosion resistant; 1.5-inch (38 mm) steel tube diameter & 1.66-inch (42 mm) metal connector diameter help to provide strong support; Thick base strengthens our gazebo by providing immense stability and durability for outdoor activities. Package: 5 boxes; Comes with 1 x top cloth; 2 x sidewalls with windows, 2 x zipper doors, columns, 5 x Oxford cloth storage bags, connecting parts, 8 x 6mm large ground nails, 8 x pull ropes, 28 x small ground nails; Product comes packaged in 5 boxes that might not arrive together; Safety measures and professional installation are highly recommended. This canopy party tent is a multi-functional shelter that grants guests shade and protection from rain; Great for commercial and recreational use; It is the ideal temporary outdoor gathering place for weddings, graduations, picnics, parties, BBQ, backyard eventsand so on. Material: Alloy Steel, Metal. 480 x 240 x 144 inches. Frame Material: Alloy Steel. Water Resistance Level: Waterproof. Ultraviolet Light Protection: UV resistant. Ground nails (provided in package) are essential to improving stability on grassy surfaces, while expansion screws (not provided) do the same for cement surfaces. Take preventative measures to avoid wind when wind speed reaches 25 mph or higher. Contact our service team if you have any concerns.