Water-Resistant | Sweat-Proof | Tarnish-Free: Designed for all-day wear Nickel-Free | Hypoallergenic | Lead-Free: Safe for sensitive skin, no irritation, no green skin Lightweight | Durable | No-Poke Wear: Comfortable, long-lasting investment We offer a wide range of sizes to accommodate all body and ear anatomy, ensuring a comfortable and perfect fit for everyone. Details: Sold individually Material: Medical-Grade ASTM F-136 Titanium 5A Grade Premium Cubic Zirconia Finishing: 18K Real Gold PVD For Gold Version | No Plating For Silver Version Dimensions: 13mm*14mm Flat Back Disc's Diameter: 4mm Bar Type: Internally Threaded