Blackline titanium or 316LVM surgical steel and metal alloy Austrian crystal Claw-set and bezel-set External Nipple Each piece is sold individually. The Spider Nipple Shield is a high-quality piece. The design best suits nipple piercings. To wear this jewelry, start by lining the shield up with your piercing. Slide the barbell through the loops on the shield and your piercing. This shield is a great alternative to like captive bead rings or circular barbells. 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 very small amount of people react to 316LVM surgical steel. If this is you, we recommend our grade 23 titanium body jewelry. 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 metal looks black. This coating is hypoallergenic. The charm is a metal alloy, which is ideal for casting and makes them perfect for jewelry with fine details. Many people have sensitivities to these alloys and may react. Metal Alloys with a PVD coating can help negate this reaction, but they may still irritate those with the strongest sensitivities. To avoid turning green, metal alloy jewelry is recommended to be cleaned often and not worn in moist/sweaty places. Show us where you wear yours with #BodyModsFamous on Instagram. We LOVE seeing our jewelry out in the real world. Finally, don't forget to follow us on and for updates on new jewelry, product info, sales, and more.