The ECF runs on a small-but-mighty 350mAh battery that's ready to shred herb to perfection at any time. Its funnel-shaped herb grinding chamber has a specially made plugged tip where pre-roll cones can be attached to transfer ground herb directly from grinder to paper. The included metal tool is perfect for stirring & dislodging herb from the grinder, as well as tamping down herb in cones before twisting them off. Included with this kit are multiple storage tubes for storing cones--filled or empty--as well as an additional clear jar which can be used as a grinding chamber on the device or for storing whole or ground herbs on the go. The cone stand holds up to 4 cones for loading or display, and the kit comes with a cleaning brush to keep the grinder clean and in top shape.