You are looking at a new Kanger Evod 2 cartomizer that include the tank and heat coil/wick (options in this listing for additional heat coils and/or batteries). These are ego and 510 threaded compatible so will work with most major brands. Brand new never used genuine Kangertech atomizer. The Evod 2 is a bottom coil Clearomizer tank system by Kanger. It features replaceable atomizer heads and has a Liquid capacity of about 2ml. Bottom coil cartomizers provide a nice warm vapor, with a superb clean flavor, and reduced wicking issues. Unlike other Clearomizers, the mouthpiece of the EVOD is permanently attached and it is filled from the bottom. This two-piece design is a major advantage over other tanks with replaceable atomizer heads. If the Evod atomizer head fails unexpectedly and the tank is filled with eLiquid, the atomizer head (base) can be easily replaced without the need to drain the eLiquid in the tank first. To fill the Evod unscrew the bottom atomizer head. Hold the tank upside down and fill with approx. 2ml of eLiquid. With the tank mouthpiece-end down, screw the atomizer head back on.
The coil replacements for the Kanger Evod 2 cartomizer can be found here: Kangertech Dual Coil Atomizers