Internally threaded circular barbell, 12 ga Home » 316L Stainless Steel | Circular Barbells | Ear piercing | Female piercing | Internally Threaded Jewelry | Nipple piercing Shown: 13mm circular barbell.Material: 316L surgical stainless steel, implant gradeGauge: 12Type: captive bead ringDiameter: optionalBall size: 1/4" (6mm)Out of Stock