316LVM surgical steel and metal alloy Bezel-set External Industrials and other cartilage projects 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 in. Tip: the size of your ear and the angle it was pierced at will change the size you need. Please measure carefully before ordering. The Butterfly Industrial Barbell 14G is made with , so it's hypoallergenic! 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 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. Otherwise, 316LVM surgical steel is excellent for people with metal allergies. We also have this piece in Gold PVD. PVD stands for Physical Vapour Deposition. In other words, the colour deposits onto the metal as a vapour. As a result, the steel looks gold or black. All stones used in BodyMods jewelry are Austrian crystals, we select the best of these crystals and set them to create a captivating play of light. , 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 #BodyMods on Instagram. Don't forget to follow us on and for updates on new jewelry, product info, sales, and more.