5pcs SMOK TFV4 TF-T4 Head/Clapton Quadruple Coils, is to get the utmost out of your TFV4. It is compatible with TFV4 and TFV4 mini. This is the Beast, a new core with most dense vapor and mega clouds of TFV4.
Like all the Smoktech products, this one does not disappoint. It's more expensive than other brands, but what you get is a good solid all around additional.