Quickly and easily removes unsightly tarnish, polishes to a mirror-like shine, and leaves a protective barrier that helps prevent re-tarnishing. Hope's Brass Polish is great for all unlacquered brass surfaces. Also this product is great for decorative copper where a mirror-like shine is desired. Unlike ordinary polishes, Hope's Brass Polish is a fast-acting formula that is both safer and more effective. This product contains no ammonia, no unpleasant odor, no harsh abrasives, and is non-flammable.