Harmony Mint 100mg CBD Cartridge. CBD Harmony Mint disposable cartridges feature a sophisticated blend of Moroccan mint terpenes with subtle and sweet undertones, providing a refreshing all-day CBD vape. A hemp-based e-liquid with a high CBD content (10%), designed for use with your Harmony Pen battery. Made with love for cigarette smokers and nicotine patch users who want to get in on the CBD. Now available in a 1ml cartridge (100mg/ml), simply screw onto the Harmony Pen battery and vape! 1 x Harmony Mint 100mg Cartridge