How the Mr. Clean Eraser Extra Power Mop Works: 1. Wet. 2. Wring. 3. Mop. 4. Rinse. Safe for Use On: vinyl; tile; marble; stone. Attention: The Mr. Clean Magic Eraser Extra Power Mop is a highly effective cleaning tool. Test first on a well lit, inconspicuous spot with light pressure. Let the spot dry to see if it is modified or damaged. Not recommended for the following surfaces: high gloss, polished, dark, brushed, satin, faux, bare/polished wood, or stainless steel.