The Museum Precious Metals Cleaning Plate.

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 6" x 8" 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 1 lb. of activator; use 1 tbsp. per 1 quart of water. 6" W x 8" L. (3 oz.)