These replacement horseshoe / circular body jewelry barbells are ideal if you need a replacement barbell and don?t want to purchase an entire new piece of jewelry. These barbells are externally threaded in 16G, and will work with all your existing 16G jewelry. Each piece is made from 316L surgical steel, and polished to a mirror shine. Barbell Size: 16 Gauge (1.2mm) Barbell Length: 5/16" (8mm) Brand: FreshTrends Age: Adult Condition: New