These Hot Wheels cars are great for play and display. To play, simply hold the car and roll it on a flat surface. You can also create your own race tracks using household items. When it comes to display, you can place them on a shelf or in a case. Note that these cars are not for use with some Hot Wheels sets, so check compatibility before trying to combine them. To keep your cars looking good, avoid exposing them to extreme heat or moisture. If they get dirty, you can gently wipe them with a soft cloth. They're suitable for kids aged 3 and up, but adult supervision is recommended during play to prevent choking hazards, especially if small parts come loose.