The Aspire Nautilus Coil BVC can really pack a punch in your Aspire Tank. It presents a unique vertical coil design, that gives bigger wicking passages. This means better wicking and more airflow, which translates into pure and clean flavor from your E-juice. It’s also packed with organic Japanese cotton, a huge step up from the ceramic material used in the past. The Nautilus Coils are easy to replace and will last you a long while! Vape on! These coils are compatible with the Aspire Nautilus, Aspire Nautilus Mini, Aspire Triton Mini and the Aspire Nautilus 2 tanks.