Shining threadless barbell filled with three synthetic blue opal gems in descending order: 4mm, 3mm, 2mm. Gauge size is 16G with a 1/4" (6mm) length. Threadless design. Made from ASTM f-136 titanium. Top size: 8mm x 4mm. Pretty option to add to your cartilage or tragus jewelry collection! Sold individually (1 pc).