High-quality material: Thanks to the high-density fabric (PES) in 420D, the waterproof shade sail is more wear-resistant, tear-resistant and corrosion-resistant, but can provide good sun protection by effectively blocking 98% of ultraviolet rays. Advanced technology: We attach great importance to providing high-quality shade sails. In each process, each edge of the product contains two layers of webbing. To prevent the product from tearing, the stainless steel D-ring and four curved wires in each corner ensure a more stable installation. Sturdy construction: Arc edge, stainless steel D-shaped rings, fastening ropes, four-layer twill webbing reinforcement, as well as double fabrics between rings and shade sail, which help to increase the stability of the shade sail during use and its service life. < p>Easy installation: You can easily install the shade sail with fastening ropes. We recommend an installation angle of 20 to 40 degrees to achieve maximum tension of the shade sail and thus