This is a pack of five Aspire BVC Coils, each coil offering 1.8 ohms of resistance. These organic cotton coils are of the Bottom Vertical Coil design. This product features dual heating coils to provide a greater amount of vapor while also ensuring enough flavor is recreated during use as well. This type of design is beneficial because of its uniquely replaceable coil and airflow system. These are intended for use with the ET-S, Nova, CE5, and K1 models.