DESCRIPTION These narrow tires suppress your car’s bounce on the track, saving valuable time in races! Their special sponge material has less rebound than ordinary sponge tires (Reston material), and is lighter than other low rebound material tires such as elastomer super-hard or low friction tires. • Black 10mm width Low Rebound Sponge Tire x4 • Compatible with Mini 4WD and Mini 4WD PRO cars using large diameter, narrow tires. • Some bodies may require modification.