The Solar Racers Outdoor Racing Set comes with two sun-powered micro cars (Solar Racers) and 5 feet of track - plus a push-button starting gate. The track is easy to set up and expandable (tracks from multiple sets can be linked together). The solar races also run on smooth surfaces outside (they require sunlight for power). No batteries required! 6 styles of solar racers are available - collect them all! Please note: the actual Racers included in your boxed set may differ from those shown below. Different boxes contain different pairs of micro cars.