PREMIUM WINTER POOL COVER – Thicker and more durable than the regular winter pool covers, this cover will keep your aboveground pool in good condition during the cold winter months and make it easier to get the pool back in shape in the spring EASY TO INSTALL – This lightweight, yet durable winterizing pool cover is easy to install. It comes with perimeter grommets, steel cable and winch so it’s ready for install right out of the box DURABLE CONSTRUCTION - This aboveground pool winter cover is treated for resistance to damaging sunrays. It’s made of premium laminated polyethylene sheeting woven with thick 8x8 scrim, high-density polyethylene stitching for superior tensile strength & durability KEEPS OUT DEBRIS – Designed to keep out debris, rainwater and melted snow, you can rest assured that next summer your pool will be ready for another season of family fun! This pool cover up is extremely durable to withstand even the harshest winters FITS 12’ ROUND POOL – This Winter Block Winter Pool Cover measures 15’ in diameter to fit a 12’ round pool without any issues