Marble.com Wet Polishing Pads are Premium Diamond Tools for polishing granite and marble. These are flexible 4" inch pads with Velcro backing and straight slots. They come in various grits to achieve the perfect shine on your granite or marble project. These versatile polishing pads can polish concave, convex, and flat surfaces to a glossy finish. These wet polishing pads should only be used with water to ensure the highest lifespan of the pad.