CZ Butterfly Top on Internally Threaded 316L Surgical Steel Flat Back Stud for Labret, Monroe, Cartilage, Piercing Jewelry, Nickel-Free

This beautiful cubic zirconia butterfly top sits on an internally threaded post. Made of 316L surgical steel, the flat-back stud is for your labret, monroe, cartilage and more. (I have lots of customers who wear these as earrings.) 16 gauge, 1/4" or 5/16" long. What's the difference between internally and externally threaded studs? Internally threaded means that the stud is hollow. The top screws into the stud. With externally threaded jewelry the top screws onto the stud.