BodyJ4You Septum Piercing Clicker Rainbow Pave Ten Crystal Clear 16G Ten Paved Crystal Single Line Surgical Steel Septum Clicker. Bar Length: 9mm Inside: W:10mm, H:10mm Whole: W:15mm, H:14mm 16 Gauge (1.6mm), 3/8" (10mm), Surgical Stainless Steel Septum Septum clicker has a hinge that opens and clicks closed.