Opal Paw Stud. Cartilage and Helix bar. Synthetic opal paw with 316L surgical steel stud. 1.2mm (micro) gauge. Available in 6mm bar length. Made from highly polished surgical grade steel and available in three different gem colours. A delicate and unique design in a paw shape with four synthetic opal stones. Suitable for ear piercings such as the Helix, auricle, cartilage and tragus.