From MAGNA-TILES®, this set features: Ready, set, roll into endless fun with the MAGNA-TILES® Rail Racers™  33-Piece set!   This action-packed set is the perfect introduction to building and motion, combining magnetic magic with creativity and speed Patent-pending rails, make it easy for kids to create racetracks, ramps, and bridges for nonstop rolling excitement Send the included ball speeding down your custom designs—whether it’s a straightaway, twisty turns, or exciting jumps—and watch imagination come to life  Inspired by a MAGNA-TILES® fan and inventive dad, this compact set offers frustration-free assembly, with no prongs or connectors required Perfect for quick builds, smaller spaces, or expanding your MAGNA-TILES® collection, the Rail Racers™  33-piece set introduces STEM concepts like speed, momentum, and problem-solving through hands-on play Simple, sturdy, and endlessly creative, it’s a versatile way to inspire kids to build, learn, and play with confidence For ages three and up Imported.