1. Bottom Dual Coil Changeable, no burning smell, huge vapor.
2. All parts are detachable and replaceable, easy to refill and clean.
3. 100% no burning and no leaking.
4. Extensive capability makes you enjoy pure taste for longer time.
5. 510 Screw Thread.
Screw thread: 510 Thread
Feature: Dual coil, bottom heating
Color: Black, stainless, pink, red, green, blue, purple