Comfortable 16 gauge bioplast piercing can be utlized for a tragus, labre or monroe. A bioplast push in shaft is designed with surgical grade stainless steel and a sparkling cubic zirconia.. Specifications: 16 Gauge (1.2mm), 5/16" (8mm), Cubic Zirconia, 316L Surgical Grade Stainless Steel, Push in Flexible Bioplast Post. 16 Gauge 5/16 Clear Solitaire Bioplast Tragus Labret Monroe