A Free 5pk of compatible cartridges are included with this atomizer

This is a genuine Joyetech Low resistance eGo-T Type B atomizer

Low resistance atomizers burn hotter than standard atomizers and therefore produce a warmer vapor, however, they may burn out or or degrade more quickly.

 eGo-T Type B Atomizers are compatible with any eGo/eGo-T or eGo-C battery, but can only be used with corresponding Type B eGo-T Cartridges (5 Pack)

Type A Cartridges only work with eGo-T Type A Atomizers which are cone shaped (tapered or smaller at one end than the other)

Type B Cartridges only work with eGo-T Type B Atomizers which are cylinder shaped (straight walls that create the same sized opening at both ends)