Body Candy Black Anodized Stainless Steel Glow Power Button Helix Earring Industrial Barbell 14 Gauge 37mm Gauge size 14 gauge; 1.6 millimeters 1.45 inch; 37 millimeter helix barbell length Black anodized titanium over 316L stainless steel straight barbell Features nonmoving glow in the dark power button logo inlay charm Barbell can be used for industrial, project bar or helix earring