This is an alluring powder blue belly button ring in solid TITANIUM 6ALV-ELI (Grade 23) IMPLANT GRADE with matching light blue jewel. The top bead size is 4mm and bottom bead size is 6mm. This belly ring is 14 gauge and measures 10mm-3/8 inches. Titanium navel rings are lightweight, corrosion resistant, and less likely to react with bodily fluids! For extra safety your titanium body jewelry can be sterilized in an autoclave.