coil master 521 tab

I bought this directly from Coil Master to replace my standard 521 TAB. Turns out my original 521 Tab just had a bad connection that I re-soldered. This new design is larger and holds 2 18650 batteries. I've only tested this to make sure it works but never "built on it". I'm sending it in the...

CoilMaster production tool of electronic cigarette, electronic cigarette players praise widely all over the world.It is not hard to see, each a tool is after long-term exploration of CoilMaster team and solicit opinions from players in actual use and feelings. For all practical purposes, so...