Windscreen4less 16ftx16ft Sun Shade Sail Square Canopy in Ice Blue with Commercial Grade (3 Year Warranty) Customized, x 16 16' x 16' (4.9M x 4.9M) Square shaped sunshade sails block up to 95% of harmful UV rays. Can be used over a patio, driveway or other outdoor areas to block harmful sun lights. Curved sides add 1"-8" for each side of sail, and enhances pull strength & prevent drooping. Constructed with brand new 180GSM high density polyethylene knitted fabric with strong stitched seam, breathable and allows cooling breeze to pass through to prevent water pooling. D-ring design on each corner, with 16 feet PE rope makes it easy for hanging. Has a 3-year warranty, and its easy to clean with mild detergent and water. It is fade resistant, and is free of mild, mildew and stains.