Body Candy Brilliant Blue Helix Cartilage Barbell 3 Pack 16 Gauge 1/4" Cartilage gauge: 16 gauge (1.2 millimeters) Length: 1/4 inch (6 millimeters) 316L stainless steel post Helix earring for your cartilage piercing cartilage earring can be used for tragus and multiple piercings