Body Candy Gold Anodized Steel Purple Synthetic Opal Moon Sun Helix Earring Industrial Barbell 14 Gauge 38mm Gauge size 14 gauge; 1.6 millimeters 1 1/2 inch; 38 millimeter barbell length cartilage earring Helix earring made with gold anodized titanium over 316L stainless steel Helix barbell with moveable moon and sun charm and purple synthetic opal accent Cartilage jewelry comes with 1 rubber o-ring to secure charm