Measure and mark logs for firewood, fast! Simply position the Mingo Marker at the beginning of the log or other surface to mark. While holding the easy to grip handle, roll the notched wheel down the length of the log. As you roll it, the device clearly marks the log at the precise measured increments with an easy to see paint mark. The Mingo Marker accurately measures and marks on any surface faster than conventional methods. Precisely cut firewood fits firebox for longer and cleaner burning. U.S.A.