BARBELL BODY JEWELRY. Let the good times roll with this fun casino dice barbells. The dice tongue ring is UV so it glows under the black light making it the perfect accessory for the clubs! This barbell is suitable for tongue, nipple and industrial piercings or wherever you can fit a 14G 5/8? barbell. Barbell Size: 14 Gauge (1.6mm) Barbell Length: 5/8? (16mm) Brand: FreshTrends Age: Adult Condition: New