Curved barbells decorated with a bubble butterfly design on top. The top piece has a threadless design that makes it easy to put in and take out. The top design measures 4mm. Made from durable ASTM F-136 titanium with a 16G size and an inner length of 5/16" (8mm). Complete with a threadless 3mm ball on the end. Sold individually. Lively design for rook piercings!