NFL Officially Licensed Black Anodized Steel Oakland Raiders Helix Earring Industrial Barbell 14 Gauge 38mm Gauge size 14 gauge; 1.6 millimeters 1 1/2 inch; 38 millimeter helix barbell length Black anodized titanium over 316L stainless steel industrial piercing Moveable officially licensed NFL Oakland Raiders logo charm Industrial barbell can be used for industrial, project bar or helix earring