Using electrolytic action instead of traditional chemical-polish abrasion, this tarnish remover bathes away tarnish from oxidized silver without removing any of the underlying metal. Simply place the 15 x 20 cm cleaning plate in a sink of hot water, add the activator, and immerse the tarnished metal. Tarnish dissolves and transfers to the cleaning plate, which lasts indefinitely and rinses clean under the tap. Non-toxic and harmless to precious gems, the tarnish remover cleans copper, quality brass, bronze, stainless steel, silver, and gold. Includes 454 g of activator; use approximately 15 ml per liter of water. 15 W x 20 cm L. (85 g)