The TFV12 Cloud Beast King Tank is an innovative powerful tank from Smok. It applies with V12-T12 coil head to support maximum output up to 350W. And comes with 6ml large e-juice capacity, the TFV12 tank will satisfy several times vaping. On the bottom of tank, the airflow slot is increased diameter and allow more airflow. And you can easy to refill liquids from top cap and no leaking.