Build your own stunt vehicles, ramps, bridges, and towers then play all day with SmartMax! With a simple click, wheels, cockpits, wings and panels attach to the magnetic bars. 48 magnetic pieces provide building variation and fun that reaches the finish. 18 medium bars, four long bars, two cockpits, four pairs of wheels, ten metal balls, two ramps, two containers, and four panels. Young builders easily master building towers and bridges following the illustrated instructions, - and inspiration is everywhere kids look!