This embossed microfibre jewellery cleaning cloth is impregnated with a chemical to clean sterling silver or gold jewellery.Size: 15cm x 15cm Comes individually wrapped in a packet.Instructions: Rub jewellery until the tarnish is removed and the item is once again is shiny. Cloth can be used until it is black all over. Do not wash.Do not use on silver plated or gold plated jewellery. The chemical will remove the plating.