the protank is on top
it is on the miniprotank base
which is on a base that came from an eGo-C
the base from the eGo-C is stuffed with tissue to intercept leaks
and the base from the eGo-C base is on a 510-to-eGo adapter; the adapters I got have the airhole in it in the middle so that's stuffed with tissue too; last time I opened it up it was full of eliquid;
and that is all on my 510-only zmax.
And the brown thing on top is the casing from a flavour cartridge from one of the early cigalike systems that I bought because the chrome itches my lips