1.Seamless 303 Stainless Steel Material.
2.Air-Flow Control with 3 slot holes each side.
3.Easy to clean and change the heating coil
4.Active and functional Heat sink Top Cap allows heat generated from the coils to escape with ease, yielding a cooler vaping experience.
5.Less resistance for electrical current to pass through.
6.510 ego thread, compatible with 510 ego battery and drip tip.
7.Resistance can be customized as your demand.
8.100% no leakage
9.Suitable for all kinds of Vapers.
http://www.waideacig.com/