To use this product, first choose your favorite Mario Kart character vehicle from the collection. You can then place it on a Hot Wheels track (which you need to buy separately). Let the vehicle race along the track and perform stunts. When not in use, store the vehicles in a dry and safe place to prevent damage. Make sure to keep small parts away from children under 3 as they can be a choking hazard. Also, if the vehicles get dirty, you can gently wipe them with a soft cloth.