Well, there is a rebuildable version, so you can toss the coil upon arrival. These are old products, probably over a year, so I'm sure there is better info online about coil material. The rebuildable version is PEI only, I think.

As an aside, I just got one of these Mini Auto squonks, and man, does it beat the shit out of any pod system, Boro mod, or smaller rta - flavor-wise. It really is a flavorful, Boutique rda quality vape.

It's biggest issue? No bottle "suck back" of excess juice, and with this model, the menu/interface system. Once learned, it's a piece of cake!