Body Candy Stainless Steel Blue Synthetic Opal Get in Gear Helix Earring Industrial Barbell Piercing 14 Gauge 38mm Gauge size 14 gauge; 1.6 millimeters 1 1/2 inch; 38 millimeter barbell length Durable 316L stainless steel straight barbell Features non-moving gear centerpiece with blue synthetic opals To wear as helix piercing simply insert each end of the barbell into each hole