Melamine Pads are specifically designed for use on stone, concrete, porcelain stoneware, marble and other porous floors. These highly effective pads remove deep-seated dirt and unsightly scuff marks with ease. More environmentally friendly - no chemical additives or cleaners required. They eliminate most dirt and stains with just water. Clean up to 500 sq. ft. with single-disc machines and up to 5,000 sq. ft. with scrubber-dryers.