BodyJ4You Septum Clicker Stainless Steel CZ 16 Gauge (1.2mm) Round Paved Crystal Aqua 316L Surgical Steel Septum Clicker. 16 Gauge (1.6mm), 3/8" (10mm diameter), Surgical Grade Stainless Steel Septum 16G Bar Septum clicker has a hinge that opens and clicks closed.