The perfect cloth to keep your bright silver bright! To use, clean surface of any dust. Rub with light pressure at first until clean of tarnish and oxidization. Keep in provided air-tight container when not in use. Replace cloth once it has blackened. Each cloth is 7.5" x 5" in size or 19.5 cm x 12.5 cmDO NOT use on matt surfaces, oxidized or textured metal. This cloth has jeweler's rouge and will brighten up and polish out these surfaces.