BELLY BUTTON NAVEL JEWELRY. Lock it up and throw away the key cause this belly button ring is HOT! This navel ring is sure to please. The handcuff features a tiny dangling lock and key. The barbell on this belly ring is crafted from 316L Surgical Grade Stainless Steel. Barbell Size: 14 Gauge (1.6mm) Barbell Length: 7/16" (11mm) Brand: FreshTrends Age: Adult Condition: New