UV Blue Pyrex Glass Look Ball and Small Barbell with 14 Gauge 316L Surgical Steel Tongue Barbell Materials : 316L Surgical Steel Barbell Thickness : 14 Gauge ( 1.6MM ) , Small Barbell : 16 Gauge ( 1.2MM ) Barbell Length : Available from 16mm and 19mm , Small Barbell Length : 6mm UV Ball Size : 6MM , Steel Ball : 3MM Free Shipping