"Our secret to beautifully polished jewels that always shine like new! These Sunshine® Cloths are a special non-scratch micro-abrasive that cleans jewelry brilliantly! It safely cleans, removes tarnish and polishes gold, silver, brass, copper and other metals leaving a deep, long-lasting luster. Packaged in a special envelope, this 3-3/4" x 2-1/2" cloth is perfect to use at home to keep your jewelry bright and shining."