These Aspire Nautilus X Coils come in a pack of 5. The resistance is 1.5 OHM and are recommend to work at 14 to 22 watts. These new Aspire Nautilus X Coils use the U-tech technology, which allows the vapor to flow through the u-shaped chamber and pass the kanthal coils twice before being inhaled. Aspires all-new airflow performance allows for unrivalled flavour and e liquid taste. The Nautilus X Coils ensure you get maximum taste and durability.