Package Includes: 9PCS nose studs with flat back and internally threaded screw top with clear cubic zircon crystal gems Size: The flat back nose studs gauge: 18G(1.0 mm); length: 1/4" (6mm); CZ size: 3 mm ; Color: Silver Material: The tragus piercing jewelry are made of high quality stainless steel and cubic zircon crystal gems, lead and nickel free, with high polished surface, not rust, comfortable to wear Multiple: Can be used as nose stud, conch helix piercing jewelry, monroe piercing jewelry, tragus piercing jewelry, forward helix earrings, flat back cartilage earrings Please read the size carefully and choose the suitable one for you 9PCS lip studs with flat back and internally threaded screw top with clear cubic zircon crystal gems