2 Pcs. Inner Diameter:8mm(5/16"). Piercing bar thickness:16 gauge(1.2mm). The thickness can be used for most piercings. Clear CZ paved hinged segment nostril nose rings cartilage earring hoop. Conch piercing jewelry. Helix Piercing Jewelry. Material: 316L Surgical Steel, Clear Cubic Zirconia & Turquoise Blue CZ. 316l Stainless Steel ( lead free, nickel free & cadmium free ) is suitable for sensitive ears. No worry about allergies. Polished well, comfortable to wear, no sharp edge. Easy to use: Hinge segment design,more easier to open/close by hand, won't deformed. Still tight after long-term use, needn't worry about losing. We have strict quality control to make you a better feeling. Helix earrings/forward helix earrings. Used as conch piercing jewelry/nose ring/ear piercing/lobe earring/helix earring/cartilage earring/forward helix earring/rook earring/lobe piercing hoop/helix piercing jewelry/helix jewelry/cartilage hoop earring/16 gauge earrings/conch earrings. Gift for your girlfriends/wife/mother/friends/son/aunt/grandma/grandpa/father/nurse/classmate/sister/brother/husband on anniversary/graduation/party/new year/vacation/holiday. Also a great idea for yourself. Don't hesitate to contact us.