Whirl S replacement tank part fits the Uwell Whirl S Kit. It has 2ml e-juice capacity and a window to show the e-juice level. There is a adjustable airflow ring on the bottom of the tank for RDL or MTL vaping. It adopts FeCrAI UN2 Meshed-H 0.8ohm Coil that can heat evenly and provide great flavor for you. In addition, the tank can be cleaned with running water (please remove the coil before cleaning the tank). 1pc each pack.