Our circular barbells are high quality, handmade, and polished to a mirror shine. Circular barbells are one of the most commonly used styles of body jewelry for almost every piercing.  From nipple rings to belly button rings, and most cartilage ear piercings, circulars (aka horseshoe barbells) provide a classic body piercing look, ideal for everyday wear.  Our 14k gold circular barbells are a perfect combination of traditional piercing jewelry and luxury. Solid 14k gold | Nickel-free Internally threaded Handmade in the USA 12G ball size is 5mm 14G ball size is  4mm 16G ball size is  4mm 18G ball size is 3mm