No more fighting to keep the bead down while installing or repairing your off-road tires. Assists in pushing the tire bead down into the drop center of the rim while using tire tools to change tires. Machined from tough 6000 series aluminum. Light weight and compact enough for any tool pack. Delrin securing thumb screw keeps rims scar free. NOT recommended for users of Bib Mousse type off-road.