Caflon Surgical Steel White Stone Color 4mm Ear Piercing Earring Studs 12 Pair White Metal 12 Pair April Birth Color 4MM Glass Foil Back Stones Each stone is set in sterilized surgical steel All earrings exceed all F.D.A / E.C requirements. Earrings are sealed and sterilized in individual packages. Comes with Butterfly Earrings backs, are grooved friction post for secure fastening. Sold per Dozen (You get 12 pairs)