Improves swimmer comfort by adding a layer of cushioning. Prevents'footprints' from forming in the sand base beneath the pool liner. Precut and sized to perfectly fit your 21 ft. : 120 Pool Dimensions: 21 ft diameter Product Depth in.: 21 Color Family: Whites Color/Finish: Whites Features: No Additional Features Material: Polyester Outdoor Living Product Type: Pool Liners Product Weight lb. Round Above Ground Pool Liner Floor Cushion Layer Pre-Cut Liner Pad" is in sale since Friday, April 20, 2018. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Pool Equipment & Parts\Pool Liners". The seller is "ezleapnbuy" and is located in USA. This item can be shipped to United States.