BodyJ4You Septum Clicker Ring 16 Gauge Crystal Aurora Round Seven Crystal Aurora Surgical Steel Septum Clicker. Septum clicker has a hinge that easily opens and clicks closed. 16 Gauge (1.2mm), 3/8" (10x8mm diameter), Diameter: 16 Gauge (1.2mm), 3/8"(10mm) Small Septum Bar Length: 6mm Inside: W:10mm, H:8mm Whole: W:15mm, H:13.5mm Septum Clicker 16 Gauge Surgical Steel Seven Aurora