Cor Bloom's certified implant-grade ASTM F-136 Titanium is renowned for being: Lightweight | Water-Resistant | Tarnish-Free: Designed for 24h Wear Nickel-Free | Hypoallergenic | Lead-Free: Perfect For Sensitive Skin & Cute Designs Comfortable | Durable | No-Poke Wear: You can wear them to sleep! We provide a diverse array of sizes to cater to all body types, offering a perfect fit for everyone. Details: Sold individually (For a pair, please choose quantity two) Material: Certified Implant-grade ASTM F-136 Titanium Cor Bloom AAAAA Prenium Grade CZ Gemstones Finishing: 18K Gold PVD/Rose Gold PVD/Black Gold PVD Flat Back Post Disc Diameter: 4mm Type: Flat Back/Labret Internally Threaded