Measures 7.3 feet around the top ring to fit pool; Pool not included Retains heat to keep water at a consistent temperature Drain holes prevent water accumulation Floats on the surface of the water and 12-inch overhang and included rope tie helps it stay put Reduces water evaporation by 95-percent May save you up to 50-percent on pool chemical usage when covered Keeps leaves and debris from entering pool which reduces maintenance time Also ideal as a thermal blanket for heated pools Easy and economical to use Reusable carry bag for easy storage Specifications: Cover material: Vinyl Cover size: 7.3 foot Pool size compatibility: 8-foot round Cover type: Protect from debris Depth: 12 inches Color: Gray Dimensions (L x W x H): 7.3 x 7.3 x 1 foot Weight: 3.6 pounds