The Clip Cannabis oil pods are 0.5 ml in size, have a nichrome heater system with gold plated brass connectors. It has a dual wick system to absorb liquids from both sides evenly and will not clog or leak. Smart sensors will indicate when the pod is inserted into device by flashing led lights on the Clip device. These pods are not refillable, once filled and sealed they will not re-open, leak or spill, use until pod is empty than dispose. This allows maximum use of the heating element and wick to provide the smoothest flow, superb flavor quality and gets the most out of the oils.