This is a nice labret monroe lip jewelry in a solid multi-color TITANIUM 6ALV-ELI (Grade 23) IMPLANT GRADE with a spiked bead. The comfortable flat end measures 4mm. The size is available in 14 gauge or 16 gauge and your choice of 8mm-5/16, 10mm-3/8, or 12mm-1/2 of an inch. The entire piece is nickel free.