Clasp Size: 9x9mm; Hole size support most of chain link; Sell Unit: 1 pieces 14K gold filled necklace clasp and closure-this is a simple addition to your gold necklace. The 14K gold filled jewellery clasp will perfectly match your gold necklace and chain. Durable material: our clasps are made of quality alloy, fine workmanship, durable and long service life, real gold filled not easy to fade or deform, light in weight and won't cause much weight burden when worn, can use for long time The built-in closing port can be closed by pushing in. When disassembling, simply press to pull out the disc to open the clasp. It is easy to use even by yourself Personalize Jewlery: these jewelry clasps provide multiple possibilities for you to apply, you can change the style of necklace/bracelets according to your mood or matching ways, you can send to your family members, colleagues, lover or friends on birthday, Valentine's Day, Mother's Day, Christmas, New Year, anniversary, wedding, and parties