This beautiful belly ring is on a 14g barbell with a charm on the bottom. The top ball is 8mm and the threaded steel ball on the other end is 5mm. The whole piece is entirely made of 316L stainless steel. The curved barbell is 14g (14 gauge) and 7/16" (11mm) in length. The dimensions are 68mm Long by 16mm Wide by 6mm High.