Always a classic, this 2mm ball nose stud is an everyday staple if you've got a nose piercing. Made of sterling silver, the single ball is 2mm and sits on a straight end stud. this type of stud goes straight through your nose and stays in place by the ridged ball on the end which stops it coming out easily. it has a gauge measurement of 23Ga, is 7mm long and weighs 0.1g.