Using your Matchbox cars is easy. Just roll them on any flat surface like the floor, a table, or a play mat. You can also use them to create your own adventure stories with your friends or on your own. When it comes to maintenance, keep them away from sharp objects to avoid scratches. If they get dirty, you can gently wipe them with a soft, dry cloth. Remember, these cars are sold separately, and styles are chosen randomly at dispatch. If you want a specific style, let us know in your order notes. Also, they're not for use with some Matchbox sets, so check before combining them. And they're suitable for kids aged 3 and up, so keep them out of reach of younger children.