Rainleaf 13' x 19' Rectangle Sun Shade Sail Canopy with Stainless Steel Hardware Kit, Dark Green high density polyethylene(hdpe) Made of HDPE. Durable & widely-usable. Hardware kit included. Blocks up to 93-95% of UV rays while enjoying the sun. Weight up to 200g per square meters. Perfect for driveway, swimming pool, patio, backyards, courtyards, gardens,bedroom,deck,sailboat,gazebo. Breathable enough to let cool wind in while keeping hot away, and let water through without ponding after rain. Ready to hang up. Easy Installation and Cleaning. Won't rot, mildew or mold. 5 years warranty.