Tough, stays on the frame of the pool, efficiently keeps away leaves, blocks UV light, and helps avoid algae. This winterizing pool cover is lightweight yet strong, and it installs quickly because it comes with perimeter grommets, steel cable, and a winch. This pool cover is tough, staying on the frame of the pool even in high winds. It efficiently keeps away leaves and other debris blocks UV light and helps avoid algae growth. This winterizing pool cover is lightweight yet strong, making it easy to install with the included perimeter grommets and steel cable. Technical Features: 1. Laminated polyethylene sheeting is used to make it. 2. High-density polyethylene stitching is woven into the fabric for greater tensile strength and durability. 3. Fits an inground, rectangular 30 x 50 pool. PROS🟢 Protects against trash, rain, and melting snow The cover has been coated to prevent the sun's harmful rays. CONS🔴 Quite heavy