A racetrack on the wall! This is about as fun as you can get for a vehicle obsessed kiddo. You might want to order an extra piece to stick on top of a table, too. (Don't worry, it will come off of the table just like it comes off of the wall.) Race cars are approximately 4 inches long.Good to know: since screen settings vary, please order a reduced-scale sample to ensure the color is just right for your space. All sizes are shown in inches.