PiercingJ 12 pairs Surgical Steel Cubic Zirconia Ear Piercing Stud Earrings White Clear / 12 Mixed Colors Stone: 12 Mixed Colors Synthetic Gemstones Birth stones Color with White Surgical Steel Metal Earring Gauge:22g(0.6mm); CZ gem diameter:6mm; pin length:10mm All earrings exceed all F.D.A / E.C requirements. Comes with Butterfly Earrings backs, are grooved friction post for secure fastening. You will receive 12 pairs Mixed CZ Gem Earrings .Earrings are sealed and sterilized in individual packages.