Fine, lightweight mesh pool covers allow rain to seep through but screens out leaves and debris Our durable safety covers have a break strength of 4,000 pounds. They are made of super-strong two-ply mesh that's held in place with brass anchors that recess flush with the deck when the cover is not in use. These safety covers come complete with brass anchors, stainless-steel springs, installation tool and storage bag, and are backed by a 12-year warranty. Our covers are available in blue or green mesh, and in several standard sizes (see drop-down menu). All of our pool covers are made of polypropylene and meet all new regulations.