Belly Button Ring - Navel Ring - Belly Ring - Belly Button Jewelry - Navel Jewelry - Body Jewelry - Body Piercing - Navel Pierceing A wooden belly piercing inlaid with Paua shell in the center. Both ends are made out of wood with a 1.6mm surgical steel, nickel free bar. It measures 25mm from top to bottom. Paua shell belongs to the molluscan genus Halliotis, which is also known as abalone. The price is for a single piece. $14.5