BodyJ4You Septum Clicker Stainless Steel Cubic Zirconia Glamorous Black 16G (1.2mm) Crystal Paved Color IP Surgical Steel Septum Clicker Ring Bar Length: 6.5mm Inside: W:9mm, H:7.7mm Whole: W:15.4mm, H:12.7mm 16 Gauge (1.2mm), 5/16" (9mm) Surgical Stainless Steel Septum Septum clicker has a hinge that opens and clicks closed.