Rose gold PVD titanium and metal alloy Austrian crystal Claw-set External Nipple Each piece is sold individually. The Jewelled Wings Nipple Barbell is a high-quality piece. The design best suits nipple piercings. This barbell unscrews from one side. Insert the barbell through your piercing and screw the end back on. If you need some help getting the barbell through, a dab of will get it through. Titanium is hypoallergenic and bio-compatible. Its often used in medical implants because of these traits. 316LVM surgical steel goes through a process called low-carbon vacuum melting. The process sucks the nickel out of the steel. Nickel is one of the most common causes of metal allergies. This process cannot remove 100% of the nickel. As a result, a small number of people react to it. We recommend our anodized, blackline, or untreated titanium body jewelry if this is a concern for you. PVD is more durable than traditional plating. If you have extreme sensitivities, we recommend wearing our anodized, blackline, or untreated titanium options instead. 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. The stones are Austrian crystals. We love Austrian crystals they don't lose their sparkle like other similar stones. If your crystals start looking dull, a quick clean will bring them back to life. 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.