The American Society for Testing and Materials [ASTM] F1346-91 (1996) standard requires that a pool cover hold a minimum of 485 pounds per five square feet to qualify as a safety pool cover.    These safety pool covers usually come in two varieties:  Mesh & Solid.   Both types of safety covers are anchored to a deck with straps that pull the cover taut over the pool; the straps usually attach to stainless steel springs and are anchored to recessed brackets in a deck surface. GUARDS YOUR CHILDREN & PETS AS IT PROTECTS YOUR POOL! Durable, long-lasting Arctic Armor covers are strong enough to support your entire family, yet light enough to put on or remove from your pool in five minutes or less. Arctic Armor covers are made of super-strong two-ply mesh with a break strength of over 4,000 lbs. During use, the cover is held in place with brass anchors. These anchors recess flush with the deck when the cover is not in use. Rest assured that your children and pets are protected from accidental drowning. In addition to its safety features, Arctic Armor affords excellent winter protection for your pool. Its fine, lightweight mesh allows rain to seep through but screens out leaves and debris. Spring clean up is a snap because no water collects on the cover. The cover comes complete with brass anchors, stainless-steel springs, installation tool and storage bag. Backed by a 12-Year Warranty.