These are the new Aspire Nautilus BVC Cotton Coils to use with both the Aspire Nautilus and the Aspire Nautilus Mini. These new Aspire Nautilus BVC Cotton Coils use Organic Cotton and feature new larger wicking holes. They are designed to provide the purest and cleanest flavor from all eLiquids. The Aspire Nautilus BVC Cotton Coils are the newer model of Aspire Nautilus Coils, they are also "Bottom Vertical Coil" design. These coils will fit both the Nautilus Mini and the full size Nautilus.