This is a double jeweled black anodized titanium with double clear cubic zirconia jewels. This belly ring is 14 gauge and measures 10mm-3/8 inches. The top bead size is 5mm and the bottom size is 8mm. 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.