Product Details16 Gauge 3/8 Red Gem Black Bat BCR Captive Ring Set of 4 Whether you have a lot of piercings or like a cohesive look, this set of 16 gauge septum rings has you covered. They are made with 10mm black anodized over 316L surgical grade stainless steel circular rings. Two have simple matching captive beads for a classic appearance. The other two feature captive bat charms, with the skulls embellished with red gems in their bodies. They feature a captive design for secure wear and you can even rock these in multiple piercings including helix, daith, and some conch piercings. You will be ready for anything with this creepy, classic cartilage piercing jewelry. Sold as a set of four.Specifications16 Gauge (1.2mm), 3/8" (10mm), Black Anodized over 316L Surgical Grade Stainless Steel Circular Barbell and 4mm Balls, Captive Closure, Set of Four (4)