Quick and easy setup using slip-together swedged tubing—no tools needed to assemble. Heavy-duty, 1 3/8" dia. high-grade steel frame undergoes a 20-step surface preparation process before the baked-on powder coat is applied to prevent chipping, peeling, rust and corrosion. Welded, reinforced truss system for maximum strength. Waterproof, heat-sealed, triple-layer white polyethylene fabric is UV-treated inside and out with fade protectors and anti-aging/anti-fungal agents. Heavy-duty grommets placed around the perimeter of the canopy reinforce attachment to frame. Large foot pads that accommodate multiple anchoring systems provide the shelter with a solid foundation on hard or soft surfaces. Ball ties aid in roof tension while allowing easy on/off installation.