CBD Oil cartridge designed for use with the O.penVAPE Battery. Contains 300mg of activated Cannabidiol / 0.5ml. Use – For maximum efficiency, simply screw CBD cartridge to your O.penVAPE Battery and inhale through the mouthpiece. The tip of the battery will glow, indicating you are vaporizing. The optimal modulated puff on your O.penVAPE is 8-seconds. Please Vape responsibly. Ingredients: Hemp derived Purified Cannabidiol, Polyethylene Glycol, Botanically Sourced Natural Terpenes, Beta-Carotene Antioxidants, Natural Flavours.