✦ Sold as One Single ✦ [SPECS] Material: Implant Grade Titanium (ASTM F-136) Stone: Cubic Zirconia (CZ) Style: Internally Threaded Flat Back Labret Thread Size: 0.6mm Gauge: 16G (1.2mm) Lengths: 6mm, 8mm Top Size: 3.5mm Flat Back Width: 4mm Colors: Silver, Gold Plating: Gold color is PVD plated over implant grade titanium Four round CZ stones set in a cross formation, reading as a small four-petal flower. Each stone sits in its own prong setting with the stones nearly touching, so the light bounces between them instead of coming from one point. At 3.5mm the whole cluster stays small enough for cartilage. This is internally threaded — the thread is cut into the inside of the bar and the top screws down onto it. That means no exposed threads passing through the piercing when you change jewelry, which is why internally threaded is the standard piercers prefer over externally threaded for anything going through tissue. Why you'll love it: Implant grade titanium (ASTM F-136) — nickel-free and biocompatible Internally threaded — no exposed threads through the piercing channel Four-stone cluster gives more sparkle than a single CZ at the same size Flat back sits flush against the skin, comfortable for side sleeping Screw-down top stays put — good for placements you don't want to fuss with Placement: 16G is the standard gauge for cartilage — helix, forward helix, tragus, conch, and flat. It also works in a lobe pierced at 16G. Sizing: 6mm and 8mm cover most placements. 6mm suits a settled cartilage piercing where the jewelry sits snug; 8mm gives more room where there's thicker tissue or any residual swelling. If you're between sizes on a newer piercing, size up — you can downsize later once it's fully settled. Cartilage piercings take at least six months to heal, often longer, and should only be changed with your piercer's guidance. Threading tip: hold the flat back disc steady and turn the top, not the other way around. Screw down until it stops — snug, not forced. More threaded flat back studs: Flower CZ Threaded Labret · Square CZ Prong Threaded Labret · Star CZ Prong Threaded Labret · Bezel CZ Convex Threaded Labret Prefer threadless? Our push-in tops swap without unscrewing anything — see the Flower Bezel CZ Threadless Stud. Browse more in Internally Threaded Jewelry and Titanium.