The CCI Maus Atomizer Coils are authentic replacement coils for the Maus Sub Ohm Tank from Cloud Chasers Inc. These coils are wicked with an organic Japanese cotton for an unparalleled quality of flavor and feature a vertical coil structure constructed from Kanthal coil, the vertical coil structure allows for a true 4mL tank capacity while also enhancing the airflow traveling through the tank to improve vapor production. The Kanthal wire build allows for use with variable wattage devices. The 0.2 ohm coil can be used anywhere from 60-120W. Staying within these recommended wattage ranges will ensure the absolute longest lifespan for each coil.