IJOY Captain Subohm Tank, New From iJoy! This amazing new tank is flaunting a diameter of 25mm and a juice capacity of 4 ML. The quick release of the top filling cap design makes filling this tank much easier. No threaded coil heads to drive the convenience of quick & easy replacement. A specially yet unique designed groove for cutting the heating transmission route, greatly reduces the heat productivity. The new Ijoy Captain sub ohm tank comes with two brand new coil heads the CA2 and CA8. The CA2 coil is composed of kanthal and two SS wires in order to produce thicker vapor and more delicate taste. On the other side the CA8 coil is composed of four dual coils in combination for increased intake airflow which produce dense thick clouds vapor. The new ijoy Captain tank is a perfect match with Ijoy Captain Box Mod.