Seems to be the only non boxy dna40 device so far with 2x18650, not much more than 24mm wide, if that, but its curved, like a kidney(?) and feels good in the right hand.
I'm somewhat ambidextrous and never paid much attention with my box mods (or tubes), but because there is a concave side there are all kinds of configurations (with both hands) between using the forefinger to fire, or the thumb (which is not ideal with this) ... on my hammond box Raptor dual 18650 devices which lots of folks say are too big for some reason, either thumb or forefinger feels normal; in either hand. There is a "wrong" feeling about palming it with the concave side.
Oh hmmm, *i think I'd like it better if it were just an oval to take all the fidgeting out of it.
Let's put it this way; there is only one ideal way to hold this V Flask, and that's with your right hand, and firing with your forefinger so remember to put it down on your right side. (sorry I know this sounds stupid, but its true, and I could go on... but i won't)