The FlavRx Black Label line is for those who want a more potent/better tasting experience out of their vape pen with 80%+ THC in each cartridge. It's comparable to taking a dab if you get the right puff. Especially with it's metal tip, you get a perfectly smooth hit every time. Those who have had bad experiences with other types of oil cartridges, you won't be disappointed with the flavor profile of a Black Label cart since all of FlavRx's extracts are processed through a solvent-free, CO2 process. This cartridge is definitely worth the buy.