Specifications: Help keep the pool free of dust and debris when not in use. This protective cover also uses the natural power of the sun to heat the water and keep appropriate water temperature in the swimming pool. Covering the swimming pool helps prevent evaporation, which means adding less water and chemicals to the swimming pool. You can place the mat under the pool to prevent the bottom from wear and scratch. Item Name: Swimming Pool Mat Material: PVC Feature: Durable, Wear-resistant, Foldable, Protective Cover Size: Szie 1.5*1.85m: 1.5m x 2m/59.06" x 78.74" Size 2.85*1.85m: 2.85m x 1.85m/112.20" x 72.83" Size 3: 3.85*1.85m: 3.85m x 1.85m/151.57" x 72.83" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Swimming Pool Mat (Others Not Included) Help keep the pool free of dust and debris when not in use. This protective cover also uses the natural power of the sun to heat the water and keep appropriate water temperature in the swimming pool. Covering the swimming pool helps prevent evaporation, which means adding less water and chemicals to the swimming pool. You can place the mat under the pool to prevent the bottom from wear and scratch.