Hinspergers Poly Tarp Swimming Pool Solar Blanket Protective Cover - 20 Feet Wide Designed to be wrapped around a solar blanket when it is rolled up on a reel Made from highly durable, woven fabric which is resistant to weather damage Provides a protective shield against UV radiation, high winds and other inclement weather Features Velcro fasteners which allow Poly Tarps to be securely fastened to solar cover reels Dimensions: 40 inches W x 20 feet long