20 x 42 ft Swimming Pool Cover Sturdy Polypropylene & Excellent Permeability & Complete Hardware The pool cover is made of polypropylene material, which is strong and wear - resistant, suitable for a 18 x 40 ft pool. Moreover, our pool cover comes with complete hardware for easy installation and security, including brass anchors, stainless - steel springs, and installation tools. Thus, it is an ideal tool for keeping your pool clean and intact throughout the whole winter. Keep your pool and loved ones safe so that you can enjoy spring together and beat the heat all summer long. Fits an 18 x 40 FT Pool High - Strength PP Material Complete Hardware Provided Child & Pet Safety Tight Mesh Construction Key Features Fits an 18 x 40 Ft Pool: Pool Cover Size: 20 x 42 ft. The actual cover size is 2 ft larger than the ordered pool size, ensuring no stretching and perfect covering. Before ordering, please measure your pool dimensions first and always select a cover based on your pool size. Ideal