This is a green labret monroe lip ring made from high grade solid TITANIUM 6ALV-ELI (Grade 23) IMPLANT GRADE and comes with your choice of a 4mm ball or 5mm ball. The size is 14 gauge and is available in your choice of 6mm-1/4, 8mm-5/16, 10mm-3/8, or 12mm-1/2 of an inch. The comfortable flat end measures 4mm.The entire piece is nickel free.