Using these Hot Wheels Monster Trucks is super easy. Just grab a truck and let it roll on any flat surface to start the crashing and smashing fun. Kids can also set up their own race tracks or obstacle courses to make the play more exciting. When it comes to safety, make sure to keep these trucks away from small children under 3 years old as they might be a choking hazard. To maintain your trucks, you can use a soft cloth to wipe off any dust or dirt. Avoid dropping the trucks from high places as it might damage the die - cast body. If you want to store them, keep them in a dry place to prevent rusting. Enjoy playing with your Hot Wheels Monster Trucks!