Triple Opal Ball Cartilage 316L Surgical Steel WildKlass Stud Earring Triple Opal Ball 316L Surgical Steel Tragus/Cartilage Barbell Material: 316L Surgical Steel/Brass; Synthetic Opal Size: 16 Gauge, Length: 1/4" 6mm, Ball Size: 4mm Color: Opal White Exceptionally High Quality Jewelry!