HIGH QUALITY - Constructed of brand new 180GSM high density polyethylene (HDPE) knitted fabric with strong stitched seam. The breathable fabric allows cool breezes and light to pass through for better airy and comfortable space, so it is not waterproof. DURABLE DESIGH - 3 parallel stitches for each side of sail, 1.1 inch over-locking in each edge, improve pull strength. All edges of the sun sail are slightly curved, so it can be stretched tightly to prevent middle from sagging. UV PROTACTION - Rectangle shaped sunshade sails block up to 95% of harmful UV rays. It's perfect for your patio, backyard, swimming pool, driveway or other outdoor area. Give you a cool and comfortable experience on hot summer days. EASY TO INSTALLATION - Measure and clean the area where the shade sail is to be installed. Stainless steel D-ring on each corner with 4 PE ropes, each rope is 5 feet, easy for hanging. Provide sun protection and personal design where you need it. LONG USE TIME - Easy to clean with mild detergent and water, fade resistant and mild. Please do not scrub it with a stiff brush.