The Aspire Nautilus AiO Nic Salt Coils were created to be used specifically with the Aspire Nautilus AIO starter kit, so if that is something that you currently own or are about to get, then these coils are completely relevant to you. In addition to that, they were designed to help vapers get those nice, direct hit using the mouth to lung vaping style. They host a 1.8 ohm resistance that also allows them to be compatible with high PG E Liquids that are at least 50% PG or more. In addition to that, the Aspire Nautilus AiO Nic Salt Coils were crafted with the capability of handling salt nicotine e juices without diminishing the life of the coils. So if you own a Nautilus AIO starter kit and are looking for some back up coils, look no further than these ones here!