The Morcheaba Vape cartridge is a pre-filled vaporizer tank containing a high concentration of phytocannabinoid hemp extract. The 250mg lasts for approximately 300-500 puffs depending on use. Containing no Propylene glycol, Vegetable Glycerin, or artificial flavors, each ingredient was selected for its dynamic synergistic qualities. Available as a full kit or replacement cartridges. If you do not have a low-voltage vaporizer battery, you should order the full KIT. The Morcheaba Vape 250mg Prefilled Hemp Extract Cartridge contains the oil cartridge only and is used with the battery pen in the vape cartridge kit.