Simply drop your Mini 4WD machine into this handy box to check whether it meets official regulations regarding vehicle length and width. This precision item is made from smoke-colored acrylic and features the Mini 4WD logo printed on the base in white. It is a highly useful item for those who need to check dimensions before an official Mini 4WD race, or check a large number of machines, especially those with significant modifications. It fits neatly in one block of a Mini 4WD Portable Pit. Mini 4WD Car Dimension Checker x1 Box measurements are intended as a guide only. At official events, the official measurement is final.