This sparkling G23 Titanium Diamond Moon Flat Back Stud will help you look fabulous without doing too much - waterproof, hypoallergenic, and made with long-lasting implant-grade material, wear this comfortable flat back earring for your conch, tragus, lobes, helix, cartilage, and more to achieve an effortless look, this delicate yet durable accessory will also make a great gift for any piercing lover! Details: Sold individually Water-Resistant, designed for 24h wear Material: ASTM F-136 Titanium (Water-proof; Tarnish-Free) Hypoallergenic and always nickel-free, safe for sensitive ears Premium AAAAA Zirconia Gemstons for extra shine Bar length: 4mm/6mm/8mm/10mm/12mm Bar gauge (thickness): 16G (1.2mm) Bar type: Flat Back/Labret Internally Threaded Simple & stylish design Beautifully hand-crafted & high-finish texture