Another exclusive item of The Kind Pen, meeting the demands of todays oil and xtraction users. Equipped with a 0.5ML CCell Ceramic Tip reusable cartridge, while also able to use your own 510 thread prefilled tanks. The AutoDraw dial adjust variable voltage battery allows you to adjust the voltage(2.6v, 3.0v, 3.4v, 3.8v) to your atomizer by adjusting how much of the battery’s potential voltage is actually in use. With a variable voltage battery you can adjust the voltage within a particular range to suit your personal preference, the type of oil you’re vaping, and the type of atomizer coil you are using. As an added feature The Kind Pen has added a pre-heat feature(2v) to the Pure to help soften your material, and help get the oils flowing easily. A COMPLETE MASTERPIECE FOR ALL OIL USERS!