Emery Sponge (No Detergent)Just use sponge. 2pc pack This magic sponge removes stains or dirt with water and without water.It has a solid surface like an eraser and its multi-functional cleaner, can be cut into any size for a suitable shapeDoes not contain any chemical ingredients, is non-toxic, not hurt the skin.It can remove crayons, magic markers, and grease from painted walls