Product Details18 Gauge 5/16 CZ Implant Grade Titanium Reversible Threadless Flatback Your cartilage piercings will have twice the style with this 18 gauge lip ring. It's made with an 8mm ASTM F-136 titanium straight post. The front end features a 3mm cubic zirconia gem and a threadless design that makes insertion and removal a snap. The back end features a hexagon shape, for a charming change from the standard disc shape and it's even reversible so you wear it however you choose. You can even rock this jewelry in multiple piercings including lip, monroe, tragus, helix, and some conch piercings. With such an endearing style and such thoughtful details, this is one cartilage piercing stud you'll never want to remove.Specifications18 Gauge (1.0mm), 5/16" (8mm), ASTM F-136 Titanium Straight Post, Threadless Push-In Design, Cubic Zirconia