Bring Mario Kart Wii to life with the ULTIMATE Bowser's Castle Track Building Set!! Race Mario and Luigi through the complete, multi-level Bowser's Castle Track. The set includes the parts to build Mario and Luigi, 2 Karts with super-fast battery-powered motors, multiple moving obstacles like Thwomps, Fireballs and Fire Cogs and 4 collectible items from the game: a Mushroom, a Green Shell, a Banana and Bullet Bill! Also includes over 26 pieces of buildable, interconnectable track that creates a multi-level, closed-circuit Bowser's Castle Track! Ages 6+. Standard K'NEX parts made in the U.S.A. Special components made in China. Packaged in the U.S.A.