That is a disposable product(singl-use), you are not imagined to open up them. Even so, these units might be refilled but it is not advised because the life span from the coils is created to be that of your juice inside the system.Loaded up with 18mL of 50mg/five% e-liquid and a large 820mAh battery, the LUSH is bound to be 1 of one's new favorites