A striking and dynamic flat back piercing earring designed to add a bold and electrifying element to your curated ear ensemble. This piercing stud is crafted from high-quality titanium, ensuring durability, biocompatibility, and a lightweight feel. Every piece of Cor Bloom Titanium Piercing Jewelry is meticulously crafted from medical-grade/implant-grade ASTM F-136 Titanium, a material highly endorsed by the Association of Professional Piercers for its safety in professional piercings. Our ASTM F-136 Titanium is renowned for being lightweight, waterproof, nickel-free, and hypoallergenic, ensuring both comfort and durability. We provide a diverse array of sizes to cater to all ear types, offering a perfect fit for everyone. Details: Sold individually (If you want a pair, please choose quantity two) Non-allergenic|Lightweight | No-Poke Water-Resistant | Designed for 24h wear | Tarnish-Free Hypoallergenic and always nickel-free, perfect for those with sensitive ears and metal allergies Material: Implant-grade ASTM F-136 Titanium Finishing: None (Titanium Silver) | 18K PVD Plating (Gold-Finish) Stones: Cor Bloom 5A Grade CZ Bar length: 4mm/5mm/6mm/7mm/8mm/10mm/12mm Bar gauge (thickness): 16G (1.2mm)/18G (1.0mm) Bar type: Flat Back/Labret Internally Threaded