Tarnish Resistant 304 Stainless Steel Magnetic Clasps with Glue-in Ends, Column, Stainless Steel ColorSize: about 12mm wide, 21mm long, hole: 8mm.304 Stainless Steel Magnetic Clasps with Glue-in Ends for your jewelry! Charming, sparkle and fashionable clasps with the characteristic of magnetism are popular with customers.I'm sure that you'll like them as well.