BodySparkle Body Jewelry Tribal Swirl Cartilage Earring-18g-16g-Steel Straight Barbell-Helix Earring Cartilage Ear Barbell Available for Left or Right ear and in 18 gauge or 16 gauge. Choose size and style from menu above 1/4 inch long barbell 1/8 inch (3mm) diameter end ball, externally threaded