SMOK V12 coils are designed for TFV12 atomizer with high performance. It will bring you smooth taste. 6 different resistance value for your selection. V12-Q4 is a 0.15ohm quadruple coils. V12-T12 is a 0.12ohm duodenary coils. V12-T6 is a 0.17ohm sextuple coils. V12-T8 is a 0.16ohm octuple coils. V12-X4 is a 0.15ohm quadruple coil and V12-T14 is a 0.12ohm fourteen coils. Just get them for your TFV12 tank to enjoy amazing vaping with massive cloud and best flavor.