Karma kit by geekvape. This is just mechanical mod made from high quality piece of copper (varnish is not that good, suddenly it starts to wipe off after 3 weeks). We need to have battery 18650 to start vaping, but firstly we need to make coils, because in this kit we can't found any of these. Atomizer - very very good (at RDA, RDTA is not that good, because we can't close airflow for 100%, there will always be 1 small hole opened, and juice is coming out, always) with velocity base, nice airflow, we can easily make every type of coils to this base, I have tried fused claptons, alien coils, parallel coils etc. I haven't any problems there. Just enough space. For me this is one of the best mechanical mods to buy in every vapeshop in UE, this is not for beginners, because of coils and ohm law etc. But it's very good for people who looking for advanced, very good looking mod. Keep vaping, VTS.