FreshTrends Stainless Steel Arrow Cartilage Earring - 18G 5/16" - Tragus/Helix / Cartilage Piercing QUALITY PIERCING JEWELRY - Made from surgical grade stainless steel. The barbells are externally threaded. SIZE - Each barbell is 18 Gauge (1.0mm) 5/16" barbell length (7.9mm). The spike and feather on the ends of this are a dainty 4mm in diameter. PACKAGING - This FreshTrends ring is sold individually and comes in tamper proof branded packing. It is brand new and never used, and guaranteed against manufacturers defects. GREAT VALUE - These high quality items retail for $17.99 each IMPROVED DESIGN - Improved design for better insertion and tightening. Each piece must pass our quality control standards before packaging and shipping.