This box of circular split jump rings is strong but bendable and easy to open and close with needle nose pliers. The seams line up well when being installed. The sizes ranging from mini to large with mixed gauges from thin to thick and will fit in most places. Whether you are an artistic crafter, costume jewelry enthusiast, caring husband to repair wife's jewelry, or a profession jewelry maker, this set of high quality heavy duty jump rings in a compartmentalized container is a necessity. They match well with silver tone jewelry such as silver plated brass, steel, surgical metal, or sterling silver. They can easily be used to make or repair metal, leather, rubber, chain, twisted, infinity, or rattail necklaces, chain mailles, bracelets, or chandelier earrings.