High-Density PP Material:; Constructed from ultra-high density polypropylene and stainless steel fittings, secured with brass ground spikes to firmly hold the pool cover in place, ensuring safety and durability in all weather conditions.Durable Webbing Design:; Webbing ends are metal-crimped to prevent unraveling, and adhesive strips on the underside protect against wear where the cover contacts the ground, extending the cover’s lifespan.Reliable & Secure Pool Safety Cover:; Unlike ordinary floating plastic covers, this safety cover attaches securely using ground nails to prevent debris entry and keep pool water clean while protecting children and pets from accidental falls.400 lbs Weight Resistance:; Designed to withstand at least 400 pounds of pressure—including snow, debris, gravel, pets, and children—and remains effective in temperatures as low as -10°F (-23°C).Installation & Size Information:; Measures 18' x 34' with a 4' x 8' step, ideal for pools sized 16' x 32'. It's recommended to choose a cover 2 feet larger on each side for full coverage.