Battery: With capacitive touch technology the battery is controlled by tapping it with your finger. Cartridge: The ClearStick Cartridge is what holds the Clear THC. Each cartridge is filled with 0.8g/0.8mL of premium Clear THC and needs to be put on a battery that supports 510 threaded tips. Charger: Simple and easy to use, it plugs into any USB charging port to allow you easy charging for your ClearStick Battery.