Black PVD Titanium Internally Threaded Double Flare Basic Tunnel Available Pre-Sterile or Non-Sterile SKU #: tipdfs10k* Black PVD Titanium Internally Threaded Double Flare Basic Tunnel. Sold by piece. Manufactured from High Polish Implant Grade Titanium (Ti-6AL-4V-ELI ASTM F136). ► Titanium tunnels are a durable & light-weight material great for everyday & long term wear. ► Titanium styles feature a polished & sleek finish making them perfect for anodizing in a variety of colors for customization. ► The internally threaded double flare allows for an irritation free experience during insertion & removal with the threaded end screwing off. The double ended flares provide a secure fit and help keep the jewelry in place. ► Each style is available in sizes 2g to 1" with 8mm wearable surface and they are 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.