You can select the charger with the blister card packaging which will be easy to resale in the retail stores. There are only four pieces of the atomizers if you select the blister card packaging.
When you refill the Empty E-Cartridge, please do not put too much E-Liquid at one time. Otherwise you may get leak or inhale some E-Liquid into your mouth.
For the detail information regarding how to refill the Empty E-Cartridge, please go to the link: How to Refill E-Liq