GeoSmart Mars Explorer is the ultimate in dynamic STEM magnetic construction. This 51-piece set includes lights, track wheels, motor and a remote control. ..kids can build all kids of creations and make them go! With Mars Explorer your can build all kinds of GeoMagnetic remote controlled vehicles...and thanks to the track wheels your creations will work on all kinds of surfaces! GeoSmart pieces are colorful and strong and feature a patented double-lock safety system for ultimate security.