Couldn't find a mod that could fit my needs as a smoker-turned-vaper - that is is could fit comfortably inside my pocket and also minimize stress on the atty. Currently almost all mods in market are basically a box with the atty sticking out. So designed this to be used with the Evolv DNA series of chips for vapers. NOTES: Currently the battery compartment is a little bit of a tight fit. I could install an AW 2200mah IMR no probs but future revisions I will make it bigger. While the fire button could work, the two small buttons was almost impossible to install. Current workaround is to have two tact switches soldered on and thrown in the space near the wires. Need more curves. Will address these in later revisions or you are free to do your magic.