Drop the balls/marbles in the top and watch them twirl, race, and chase each other.Track is magnetized and extra-easy to assemble. A good starter set for younger children. Fun, fast, and full of thrills, it's open-ended play with dozens of learning benefits. Product Features:Magnetized pieces for extra-easy assembly. 36 pcs - 4 wooden balls included. Measures 32.5x 32.5x 9.5 cm. Ages 3 and up.