How to use: First, select your favorite Mario Kart vehicle. If you have a Hot Wheels track, place the vehicle on it and give it a gentle push to start the race. You can also create your own stunts and adventures off - track. Just let your imagination run wild! Note: The vehicles are sold separately, so availability might vary. Also, the colors and decorations on each vehicle may not be exactly the same. Maintenance: Keep the vehicles clean by using a soft cloth to wipe them. Avoid exposing them to extreme heat or cold. And remember, these are toys for kids aged 3 and up, so adult supervision is recommended during playtime.