Hypoallergenic Titanium: ASTM F136 implant-grade titanium, 100% nickel-free for sensitive skin. Material: ASTM F136 Implant-Grade Titanium. [ Feature ]: ASTM F136 titanium and certified by SGS, suitable for fresh or healing piercings, Hypoallergenic, and 100% nickel-free, 5A Cubic Zirconia.
