The SMOK TFV18 features a 7.5ML juice capacity with the smaller coils, and 6.5ML capacity with the larger coils. It has a range of 80-100 watts, and is made of stainless steel. It has the locking style top cap so your juice doesn’t come out while carrying, and the standard 510 threading. One of the really cool things about this new version is it’s backwards compatibility. You can use both the new TFV18 Mesh coils, or the TFV16 Mesh coils. So, if you are concerned about a different set of coils, there is the option to continue to use the ones you like, or try out the new mesh coils they have come out with. Cheers!