Cool Area Rectangle 9'10'' X 13' Sun Shade Sail with Stainless Steel Hardware Kit, UV Block Fabric Patio Shade Sail in Color Sand Made of 100% brand new 185gsm High Density Polyethylene material, finished with strong stitched seam and stainless steel eyelets, quality is 5 years guaranteed Breathable fabric results in significant temperature reduction underneath the sail, blocks up to 90% of harmful UV rays but give you free air, ideal for patio covers, children sandpit covers Energy saving and environmental protection, cool your house when installed outside the window. Decent color to choose Easy to clean with mild detergent and water, fade resistant, will not mold, mildew, stain, tear Easy to install, quality grade stainless steel D rings on each corner and commercial grade 316 stainless steel hardware kit included: turnbuckles, eyepads and snap hooks which worth more than $30