Style: Shark In And Out Split Belly Button Ring Material: 316L Stainless Steel Gauge/Bar Thickness: 14Ga (1.6Mm) Barbell Length: 7/16" (11.2Mm) Crafted from 316L stainless steel, this Shark In and Out Split Belly Button Ring boasts a 14GA (1.6mm) gauge/bar thickness and a 7/16" (11.2mm) barbell length.