14 Gauge(1.6mm) Grade 23(G23) Titanium Straight Piercing Barbell w/Internally Threaded Ball Ends Material: Grade 23 Titanium Bar Thickness: 14 Gauge (1.6mm) 4mm balls on the 5/16",3/8" and 1/2". 5mm balls on the 3/4" and 7/8". Internally Threaded You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!