Crafted from ASTM F136 implant-grade titanium, rigorously tested for professional body piercing, ensuring maximum safety and user-friendly application. IMPLANT GRADE SOLID TITANIUM NAVEL RINGS WITH PRESS FIT CLEAR DOUBLE GEM Thickness: 14GA (1.6MM) Length: 7/16" (11MM) Ball Size: 5X8MM. Ships in 1-3 business days