Hjalmark
Oldest boy alive
Or just a bloody 18650 hopper with a heater that was threaded so you could screw it out yourself and replace it with their partsI still wish Hopper Labs would release a 510 threaded version of their 3D printed spiral heater to run on any box mod, that way you could bypass all of their proprietary batteries and electronics systems.
And yeah well rearrange their whole warranty and business strategy