Use this variable voltage magnetic powered battery with cartridges. 450 MAH built in battery, push button, 3 voltage settings, preheat capability and 5-10 thread connection. Also comes with the USB charger.

10millimeter Cartridge Slot Diameter

In order to use this device you must use the magnetic ring that screws onto your cartridge.

Includes:

• Variable Voltage Battery
• Magnetic Ring (Screws onto Cartridge)
• USB Charger