Product Details Hypoallergenic Retainer Body Jewelry14 Gauge 1/2" Clear Flexible Bioplast Straight Barbell Retainer As much as we love to show off our piercings, there are times when we need to hide them as well. Now you can do that without risk of them closing with this 14 gauge flat-back retainer. It's made with a 12mm Bioplast straight barbell and has a 4mm clear acrylic ball end to make it as unobtrusive as possible. It's flexible so you don't have to sacrifice comfort for camouflage either. This is perfect for multiple piercings including tongue, nipple piercings, and more.Specifications14 Gauge (1.6mm), 1/2" (12mm), Flexible Bioplast Straight Barbell, 4mm Ball End