I have a couple of their pipe bowls --- you can see pics here:
E-pipe afficiando thread
Watch their promo video to get a
sense of how they work (how the battery/switch goes in and is held magnetically).
I will say I'm not impressed with their vapesafeHD fuses: One I got DOA, but they sent a replacement right away, and they have a supposed 1-ohm limit, but they don't seem to work consistently if
vaping close to that (1.1 ohms seems to have put another to death), and I just use magnet spacers now.