Description from Amazon

Cool Area Right Triangle 16’5” Sun Shade Sail for Patio in Color Sand

• Constructed of HDPE material which is more durable than traditional material, 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
• 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. Decent color to choose