12mm diameter Black Titanium bead,3mm hole, more sizes are available

A hypo-allergenic, bio-compatible, and anti-corrosion material that would lend itself to adding an upscale look to a ring without the disadvantages of steel damascus.
The fast blackening technology for Titanium alloy Bar was developed by CW Materials LLC in Charlotte NC USA.  Through a proprietary process using simple equipment, a black ceramic like surface, which is not a coating application, is created less than 10 minutes. Delivering all the benefits of the hardness of ceramic but with the ductility of metal.

Note: 12mm diameter and 3mm is in stock. 5~30mm, 1.5~5mm hole can be customized 

Please contact the owner for more information