Body Candy 38mm Black Plated Steel Helix Cartilage Earring Halloween Vampire Bat Industrial Barbell 1 1/2". If you've gone batty and love to celebrate Halloween all year 'round then this 14 gauge industrial piercing will be a perfect choice for you. Made with a 1 1/2" black plated over 316L stainless steel straight barbell, this barbell earring features a nonmoving black bat charm for a scary good time! Specifications: 14 Gauge (1.6mm), 1 1/2" (38mm), Black Plated over 316L Stainless Steel Straight Barbell, Nonmoving Charm