Body Candy Stainless Steel Synthetic Opal Simple Septum Clicker 16 Gauge 16 gauge; 1.2 millimeter septum piercing 5/16 inch; 8 millimeter straight barbell septum clicker 1/2 inch; 12 millimeter width with 3/8 inch; 10 millimeter rise septum jewelry 316L stainless steel straight barbell for septum piercing with synthetic opal Septum ring features clear and iridescent accents and an easy open and close hinged barbell