If you think about it ... Kanger is pretty smart in that they designed this MOW to be 17.5mm in diameter.
And why do I say that? ... Well, if you want to attach the MOW clearomizer to a battery which is the same diameter, your going to need to buy the matching Kanger EMOW adjustable voltage battery.
Your standard diameter EGO style battery is only 14mm in diameter (too small), and your standard mechanical tube
mod is 22mm in diameter (too big) ... So, if you want that Kanger MOW clearomizer to fit perfectly on a battery, you will also need to buy the matching (non-standard width) Kanger EMOW battery.
Cleaver marketing by KangerTech.