Using these Monster Jam trucks is super easy. Just grab the two trucks from the 2 - Pack and start creating your own Monster Jam showdowns. You can race them on flat surfaces or set up obstacle courses for more fun. When playing, make sure to keep them away from small children who might put them in their mouths as they're designed for kids 3 and up. To keep the trucks in good condition, wipe them with a soft cloth regularly to remove dust. Avoid exposing them to water or rough handling that could damage the die - cast body or the graphics.