These are Replacement Coils for the TFV16 Tank. They come in a 3-pack and feature SMOK’s all-new mesh design as well as organic cotton wicking. The TFV16 is designed with an extra-large heating area and is available in a 0.17ohm single mesh or 0.12ohm dual mesh design. As recommended by SMOK, best performance of these coil configurations occur at around 120W.