12 x12 ST (straight leg) pop-up canopy, checkered flag cover, black roller bag. It is made up of polyester fabric cover, treated inside and out with fade blockers, anti-aging and anti-fungal agents and has polyurethane inside lining, double stitched for optimal water resistance and drip-free seams. It also comes with 50+upf rating blocks more than 98% of UV harmful rays and upf represents ultraviolet protection factor and indicates how much of the sun's radiation is absorbed. The 50+upf is the highest fabric rating for radiation exposure. It has an only 2% of the uv rays will penetrate through the shade fabric. It has a sturdy beam welded tubular steel frame with high performance synthetic joint components bonded with DuPont™ thermoset baked on powder coat to prevent chipping, peeling, rust and corrosion. It also has four point height adjustable legs. It is bigger and better. 12' x 12' open top pro. It also is our widest open top pro pop-up and combines sturdy construction, quality features and stylish design in one easy up unit. It is perfect as a vendor or special event canopy.