Product Details18 Gauge 5/16 CZ Implant Grade Titanium Reversible Threadless Flatback You'll want to open your heart to this 18 gauge lip ring. It's made with an 8mm ASTM F-136 implant grade titanium straight post. The front end features a a 3mm cubic zirconia gem for timeless style. It also features a threadless design that makes insertion and removal a snap. The back end features a heart shape, for a charming change from the standard disc shape and you can wear it reversed for twice the style. 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 flat back cartilage piercing jewelry is one you'll fall in love with.Specifications18 Gauge (1.0mm), 5/16" (8mm), ASTM F-136 Titanium Straight Post, Threadless Push-In Design, Cubic Zirconia