Our Diamond Flat Back Studs are a must-have for any ear stack. Featuring a high-quality cubic zirconia that adds effortless shine to any outfit! Whether you’re dressing up or keeping it casual, it’s the kind of piece you’ll reach for every day. * The most comfortable earrings you’ll own! They sit flush against your ear so you’ll forget you’re even wearing them! * Made of implant grade titanium - hypoallergenic, waterproof, sweat proof, good for 24/7 wear! * Each listing is sold as a PAIR (comes with two flat back studs and two 6mm posts) * 18 gauge, comes with 6mm posts. Fit snug and secure in almost all piercings! Never tried Flat Backs? Flat Back Applicators make putting in earrings a breeze! Or try 8mm posts if you like a roomier fit! (Both available in the Flat Back Collection)