Decorative & Effective Shading - 2 pcs 10x13 ft Rectangle Sun Shade Sail, a beautiful decoration for backyard, balcony, deck Polyester Reduces Heat Transfer - 100% brand new polyester to reduce the temperature under sail about 50°F 97% UV Block Protection - Effectively blocks 97% of harmful UV ray Easy Assembly - Hanging ropes for easy installation; Foldable for space-saving storage Durable in Use - Double stitched seam reinforces the edge; Color fastness of European Level 4 to keep original color