Petra's 20 Ft. X 20 Ft. Square Sun Sail Shade. Durable Woven Outdoor Patio Fabric w/Up To 90% UV Protection. 20x20 Foot. (Desert Sand) Dimension: 20' x 20' Heavy Duty Stainless Steel D-Rings High Density Polyethylene(HDPE) Weave Fabric Effective Harmful UV Blocking, Up to 90% Color - Desert Sand