Flat back threadless push-in piercing studs are crafted from implant-grade G23 titanium, a biocompatible metal favored for surgical implants. This material is nickel and lead-free, minimizing the risk of allergic reactions or irritation, making it ideal for those with sensitive skin. Post Thickness: 20g=0.8mm, Post length: 6/8mm, 1pc packge: stud top × 1, 6mm post × 1, 8mm post × 1, Material: ASTM F136 titanium, Gemstone: AAAAA cubic zirconia, perfect for cartilage, helix, conch, tragus, lobe, rook, daith, nose piercing jewelry, etc. These titanium piercing studs have a threadless push-in design for easy insertion and removal. Slightly bend the post before inserting to ensure a secure fit. The flat backs are highly polished, providing a smooth, irritation-free surface that's easy to clean. You can wear these earrings while sleeping and bathing without worrying about fading or rusting. This unique and sincere product is beautifully packaged and ready for yourself,families or friends. A sensual surprise for any wonderful lady. A great present for mom or grandmother for Mother's Day, anniversaries, birthdays or wedding celebrations. If you have any questions, please contact us.It is very important that you have a great experience and enjoy our jewelry. Titanium is known as a "biophilic metal" and is widely used in medical devices and human implants. It can be exposed to iodine volts and does not turn black like silver.  Even if it is immersed in seawater for a long time, it will not affect its nature and avoid human allergy to the greatest extent. Completely free of lead, nickel and cadmium.