Using these Hot Wheels Monster Trucks is super easy. Just hold the truck and roll it on a flat surface. You can also let the kids have fun crashing and smashing them together to recreate the exciting Monster Truck action. When playing, make sure to keep them away from small children who might put them in their mouths as they are small parts. To keep the trucks in good condition, wipe them with a dry cloth regularly. Avoid exposing them to water or extreme heat, as this could damage the die - cast material and the paint. And remember, since each truck is sold separately, you can collect them all to build your own Monster Truck collection!