The King Kone Clearing Tool is compatible with all metering trays intended for tubes. Designed to help you clear cannabis out of your King Kone Metering Tray with ease and help speed up the metering process for making preroll tube products. Sticky material tends to be more difficult in all aspects of pre-roll production, this clearing tool will assure that all the material goes straight through the metering tray and into your pre-roll tubes.