10'x20' Heavy Duty Carport Gazebo, Canopy Garage, Car Shelter with windows W465132836[Triangular structure and grounding rods] The additional angular support beams create a unique triangular structure, which makes the top roof frame more stable and firm; the additional grounding rods make the tent more stable on the ground and more wind resistant. [Removable side wall] 2 detachable side walls, with transparent window glass, each window has a window cover. [Heavy duty] High quality, heavy duty powder coated steel frame. Anti rust and