ATTENTION: Our shade sails have curved sides to enhance pull strength and prevent drooping; this can add 1"-8" to the side length. The middle center of the sail will be shorter in width due to curves. If straight sides are preferred please contact us. Read the description for details..HIGHT-QUALITY GUARANTEE: Made of 100% brand new high-density permeable polyethylene knitted fabric material. Made so that no water is accumulated on top during rainfall, 3 Years warranty under normal usage and normal weather conditions..95% UV BLOCK: Breathable sun shade sails can be used over a patio, driveway, or other outdoor areas to protect against up to 95% harmful UV rays; easy to clean with water, no maintenance needed..STRUCTURE DESIGNED FOR DURABILITY: 20 FT PE ropes and Durable D-rings in each corner make the sun shade sail easy to attach to any sturdy connection point to provide sun protection and personal design where you need it..WIDE APPLICATION: TANG patio cover is ideal for a deck in the backyard, porch, pergola, pool, pond, deck, courtyard, backyard, dooryard, park, carport, pergola, sandbox, driveway, or other outdoor area to provide sunshade.