Usage Tips:Feature: 1. HIGH QUALITY: Made of 100% polyester fabric with PU coated(160 gsm), more healthy and safe. Resistant to water, tears and adverse weather conditions. Including three pad eyes. Free giving 3*1800D wind ropes (200cm for each), robust sewing processing on each side, stainless steel D ring on each edge, firmly guarantee fastness of installation. 2. UV PROTECTION: Up to 98% UV protection and 90% Shading rate. Shade sails will lower the ambient air temperature reducing your properties cooling cost and energy consumption. The savings will pay for the Shade Sail's over time, with the right design. 3. WATER RESISTANT: Water-resistant rating: 400mm HH (Water resistant, not waterproof); Air permeable, allowing a constant circulation of fresh air. Simple and safe installation with rope. Suggests that the installation angle is 20-40 degrees, to achieve maximum tension and also to allow rain to runs off. (Installation with hardware kit will be more convenient and stable. Search B087X3Z1RW can match shade sail hardware kit) 4. EASY TO INSTALLATION: Measure and clean the area where the shade sail is to be installed. Leave an allowance of 1.5-2ft between the fixing point and the shade sail to fit hardware/ hooks or ropes. Curved sides to enhance pull strength and prevent drooping, so the actual shading area would shrink slightly, tolerance 4 6 inches for each side. You could install different shade sails of different colors and sizes to get a larger shading area. 5. PRACTICAL & MULTIFUNCTIONAL: Widely used over a patio, lawn, garden, pool, pond, deck, kailyard, courtyard, backyard, dooryard, park, carport, pergola, sandbox, driveway or another outdoor area. Its effectively reducing heat in your outdoor living areas. Material: polyester cloth Color: Size: Package Includes: Shade Sail + 3* Wind ropes How-To Install a Shade Sail ---The shade sail came with D ring & Wind ropes for you to be able to make the connections to the house/trees/other strcture pretty easily. ---If you want to strengthen the fixing, you can buy a set of hardware from our store. ---How-To tighten the rope after installation/Buyer's Experience Sharing ---From the opposite corners, I assembled the proper length of wire rope with the thimble and clamp for the end, and attached to eye bolts in the trees with a turnbuckle to tighten the span. Once I had these four anchor points established and installed, the shade sail was in the proper position and I could tighten all four anchor points to get the desired tension.