Black PVD Titanium Internally Threaded Bezel Set Gem End Nipple Barbell. One side of this internally threaded titanium nipple bar is fixed and the other side is internally threaded. The detachable threaded end is exclusively designed for use with the nipple barbell it comes with and may not be compatible with others. The backside is flat and smooth. Sold by piece.

? The Lot # & "JPN" will appear on our label of the bag of jewelry which indicates that it is sourced and milled from titanium directly made in Japan, a DFARS compliant country for titanium.

? We have corresponding mill certificates for these styles which can be located on our website once logged in. The certificate includes the heat # & lot # for traceability.

Made from implant-grade titanium Ti-6AL-4V-ELI ASTM F136 and coated with Titanium Nitride (TiN) using the Physical Vapor Deposition (PVD) process.

The PVD coating bonds at the atomic level to the titanium, creating a chemically inert and nickel-free surface that won’t flake, leach, or irritate the skin. The same technology is used in medical and aerospace applications for its safety and stability.

Titanium Nitride forms an ultra-hard, scratch-resistant layer that becomes part of the metal itself — not just a surface coating. The result is a deep black finish that resists wear, fading, and corrosion for long-lasting beauty and performance.