PROTECTS METALS AGAINST TARNISH & CORROSION: Prevents against tarnish, corrosion, and oxidation on newly cleaned fine and fashion metal goods including Silver, Gold, Copper, Bronze, Tin, Brass, Magnesium, Iron , Weapon and Steel. Use to keep your jewelry, watches, silverware, and coins shiny and bright. They protect utilizing advanced, patented technology, won't leave deposits, are non-abrasive and are safe for all metals and gemstones, even when in direct contact with the item you want to protect!