Customize the fit of your favorite threadless earrings with Lux Punk Titanium Flatback Posts. Available in three post lengths and two flatback disc sizes, these implant-grade titanium posts let you fine-tune the comfort and fit of your jewelry. Compatible with all Lux Punk threadless ends and most standard threadless ends from other brands. Features ASTM F136 implant-grade titanium High-polish finish Hypoallergenic, nickel-free and uncoated 16 gauge (1.2mm) Compatible with Lux Punk and most standard threadless ends Designed for long-term wear in fully healed piercings Compatible with: ✓ All Lux Punk Threadless Ends ✓ Most standard threadless ends from other brands ✕ Not compatible with internally threaded jewelry New to Flatback Earrings?Flatback jewelry is inserted from the back of the ear rather than the front like traditional earrings. Once inserted, simply press the threadless end into the post until it feels secure.Learn more →