Blue Unglazed 2" x 2" Dot Mounted Porcelain Pool TileMosaic Pool Tile This is a dot mounted unglazed porcelain tile that is slip resistant and is suited for commercial lap pools, competition pools, diving pools, training pools, recreation pools and activity pools. These tiles are suitable for swimming pools, spas, and not only meet but also exceed the standards for residential applications, including kitchen wall backsplashes, showers, and bathrooms.