BodyJ4You Septum Clicker 16 Gauge Surgical Steel Five Crystals Round Five Crystal Aqua Surgical Stainless Steel Septum Clicker. 16 Gauge (1.2mm), (12mm) Bar Length: 6.3mm, Inside: W:12mm, H:9.5mm, Whole: W:15mm, H:16.3mm septum clicker has a hinge that easily opens and clicks closed.