The Smok RPM2 Mesh Coils, which designed for the high-quality vapor and flavor, with the mesh wire inside, the large e-juice contact area will heat the juice fastly and evenly, bring you the dense vapor and intense flavor, you could use them for direct lung vaping. 

Larger Heating Area And Fast Heating
For DTL Vaping
Mesh 0.16

NB: Each sold separately, per coil NOT per box.