A handy, all purpose size jump ring, in genuine sterling silver. Useful for the female half of small clasps, hooks & other fasteners. Use to fasten the male half to your chain. 18 gauge is thick and less likely to open due to tension placed on it by wear. I t'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: 6mm outside diameter. Wire is 18 gauge, or .040 Inch. Quantity: 10 Open Jump Rings