Body Candy Stainless Steel Celtic Trinity Knot Tree of Life Helix Earring Industrial Barbell 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 11 millimeter diameter branchy tree charm in middle of bar Includes clear rubber o rings to keep charm in place