This solid 14k yellow gold ball nose stud has a tiny ball on its back end that holds the nose stud firmly in place. This type of nose stud, with the ball on the end to hold it in place, is often called a nose bone or nose pin. The nose stud features a 2mm ball. High quality at a great price. This listing is for one single nose stud. 1-14NOS-NE7005-2MM