BodyJ4You Septum Clicker Mustache Stainless Steel 14 Gauge 5/16" Old Mustache Surgical Steel Septum Clicker. Bar Length: 7mm Inside: W:9mm, H:9mm Whole: W:14.5mm, H:14mm 14 Gauge (1.6mm), 5/16" (9mm) Surgical Grade Stainless Steel Septum Septum clicker has a hinge that opens and clicks closed.