Link yourself to a glimmering jewelry supply paradise with these silver plated jump rings! Whether you need a few hundred pieces or a thousand pieces, you€™re sure to find the perfect fit for your jewelry making masterpiece. Made from 21g sire, these rings will add just the right amount of shine and sparkle. -4 mm outside diameter -2.7 mm inside diameter -.7 mm thickness (21 gauge) -Silver plated iron alloy Contains small parts. Not intended for children.