Robelle 432040R Premium-Mesh XL Taupe Mesh Winter Pool Cover for In-Ground Swimming Pools, 20 x 40-ft. In-Ground Pool Attractive Taupe and Black mesh Dense mesh allows water to pass through, while keeping debris out of your pool 5 foot overlap (includes 5 feet of extra material, making this cover easier to secure) Water bag loops every 4 feet. Grommets at all four corners 15 Year Warranty