316L Stainless Steel nipple jewelry • Multiple spiral design on the shield • Partially plated in Black for an antique jewelry look • Two rings in the back of shield for a barbell to be attached • Ring Size (Wearable Size) : 1/2" | 12.5mm • Bar Thickness : 14GA | 1.6mm • Bar Length : 3/4" | 19mm • Ball Size : 5mm • Material : 316L Stainless Steel