The Eleaf iCard ID Coils are designed to work with the Eleaf iCard e cig and mod kits, as these coils are compatible with the new atomizer head that runs at 1.2 ohm. Even though they are designed to fit in a small tank, these coils are Kanthal coils and are equally tiny in size. However, don't let this fool you as these little guys will be able to produce more flavor than you would ever think possible. In addition to that, they assist vapers in making some giant vape clouds that can be very pleasing in a vape session. The Eleaf iCard ID Coils are also ideal for people who enjoy direct hits and the mouth to lung style of inhaling.