Windscreen4less Sun Shade Sail for Outdoor Patio Backyard UV Block Awning with Steel D-Rings 8ft x 8ft Sky Blue Square - Custom Sun shade can be used over a patio, driveway or other outdoor area to protect against UV rays Made of high-quality 180gsm sun screen fabric, so it blocks up to 90% of harmful UV rays Sail comes finished with strong stitched seam, fitted metal D ring and nylon chords for easy hanging Allows rain to pass through, so there's no pooling water Multiple sails can be arranged to create a fashionable outdoor living space