This Is the BEST Jewelry Polishing Cloth we have tested and used for many many years. It was Originally made For Silver Cleaning and thats what it's Best at, but it will Clean Most Metals very Well, like your Custume Jewlery. And because this is the largest size (12" X 10") you will get more for your money, since the larger the cloth is more it can be used, and the longer it will last.