Material: Surgical Steel(Barbell), Zinc Alloy/Steel/Enamel(Design) Thickness: 14 Gauge (1.6mm) ? Barbell Length: 9/16" (14mm) Sold in pairs Nipple Barbell / Nipple Jewelry with cow design Adorable dairy cattle faces on each ends Cow faces are decorated with White, Black, and Orange Enamel ? Barbell Thickness : 14GA | 1.6mm ? Barbell Length (Wearable Size) : 9/16" | 14mm Cow Face Size : 8 x 10mm Material : 316L Stainless Steel, Zinc Alloy, Enamel