Natural soaps and the finest clays clean thoroughly and gently, which is why the cleaning stone is suitable for all surfaces made of glass, plastic or metal, including painted metal surfaces. As a universal cleaner, it can be used throughout the home as well as in the garden or garage. It removes limescale in the shower, binds grease on extractor hoods and glass surfaces in the kitchen and cleans bicycles and wheel rims. To do this, moisten the enclosed sponge, rub a little of the stone until a light foam forms and use it to clean the surface. Wipe off with a damp cloth or rinse with water. From Croldino, the Solingen specialist for cleaning and care products.