The Joyetech Atopack Magic adopts the innovative coil-less NCFilm heater into a pod system in a creative way. The NCFilm heater supports long life-span with huge vapor production. The Joyetech Atopack Magic enables to quick change the cotton. We suggest you changing the cotton after 3 full cartridge e-juice to get the best flavor. The package contains 50 pieces of cotton pad for you too.