316LVM surgical steel Austrian crystal Claw-set External Tongue, Nipple, Bridge, Conch, Project Piercings, Transverse Lobes, and more! 316LVM surgical steel is a low carbon vacuum melted. This process sucks the nickel from the metal. Nickel is a common cause of metal allergies. Please note: this process cannot remove all the nickel. As a result, a small number of people react to 316LVM surgical steel. If this is you, we recommend titanium body jewelry. Otherwise, 316LVM surgical steel is great for people with mild to moderate metal allergies. Blackline is a titanium carbide PVD coating. PVD stands for Physical Vapour Deposition. In other words, the titanium carbide deposits onto the metal as a vapour. As a result, the titanium looks black. This coating is hypoallergenic. The yellow and rose gold are PVD. PVD is more durable and therefore lasts longer than traditional plating. However, the plating may irritate metal allergies. It's . In other words the bead screws onto the post. The stone is an Austrian crystal, so it won't lose its sparkle over time. If you notice it looking a bit dull, a quick clean will bring it back to life. The stone is bezel-set to keep it securely in place. This piece is a favourite for so many piercings (like we said before). Here are a few examples: tongue, nipples, conch piercings, transverse lobe piercings, project piercings, and so many more than we can list! Show us where you wear your Claw-Set Heart Tongue Ring with #BodyModsFamous on Instagram. We LOVE seeing our jewelry in the real world. Don't forget to follow us on and for updates on new jewelry, product info, sales, and more.