Wismec has been a solid reliable brand producing top of the line regulated Box Mods for many years now. They've made a name for themselves in the industry with staple mods such as the Reuleaux Box Mod Series and the Indestructible RDA.  Always on the cutting edge of technology, if you're looking for sturdy and reliable Box Mods or Tanks then Wismec is definitely the brand to go with.