Set of 3 Pairs Steel Screw on Tunnels - 1/2" - 12mm - (Blue, Black, Steel) Made of 316L Surgical Stainless Steel Set of 3 pairs 1/2" - 12mm Screw On 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!