The Universal Stone is an amazing product – gentle enough for daily use yet tough on lime scale, soap residue, grease and dirt. This natural fine polishing clay gets rid of the stubborn stains from sensitive surfaces without leaving scratches. The product is highly concentrated and foams up on a sponge with water. The Universal Stone has an unlimited shelf life and one jar will last a family for years. Use on mirrors, glass, tile, paint or plastic. Good for metals –  silver, brass and stainless steel. No household should be without this product. Made from natural raw ingredients and free of synthetic additives (such as silicon and polymers). Hypoallergenic, Biodegradable, Cruelty Free. Made in Germany.