Product Details 20 Gauge 1/4 Trinity Ball Gold PVD Implant Grade Titanium Push In Threadless Stud Earring Great things come in threes, as seen by this 20 gauge body jewelry. It's made with a 6mm gold tone PVD over ASTM F-136 implant grade titanium straight post with a flat disc back. It features a triple orb charm top that features a threadless design, for maximum comfort on insertion and removal and making it easy to change the end. Best of all, you can wear it in multiple piercings including earlobe, and nostril piercings. Classic jewelry and modern style make this elegant flat back earring a a winner. Hypoallergenic Flat Back Earring Specifications 20 Gauge (.8mm), 1/4" (6mm), Gold Tone PVD over ASTM F136 Implant Grade Titanium, Threadless, Push In, Flat Back