These 8mm sterling silver jump rings are useful as the female half of clasps, or as the end ring over which you loop and crimp your beading wire. Attach the smaller clasp of your choice to the ring with an open jump ring or split ring. The additional flexibility given by placing this extra ring between the clasp and the cord will reduce stress and breakage, too. Measurements: 8mm outer diameter. Wire is 18 gauge, or .040 inch thick. Quantity: 10 Open Jump Rings.