These handy, silver plated jump rings work great as the female half of small clasps, hooks and other fasteners. Use to fasten the male half to your chain.
20 gauge is thick and less likely to open due to tension placed on it by wear. It's perfect for earrings and can work on charm bracelets too. Make sure to give it an extra pinch with pliers to make sure the ends meet and stay closed.
Measurements: 8mm diameter. Wire is 20 gauge, or .032".