3pc Precious Metals Rouge Polishing Set [4 oz Bars] The perfect set for polishing metals from your car rims to jewelry Each bar is 4 oz. RED - for polishing gold, sterling silver, chrome plate, copper, brass, pewter, nickel, Plastics [Formica & Baklite] WHITE - for polishing stainless steel, platinum, gold, aluminum, brass, copper, BROWN TRIPOLI - for polishing aluminum, brass, animal horn, hard rubber, wood, thermosetting plastics [Formica & Baklite]