The colorful Kullerbü ball track Kringel-Domino from HABA combines rolling fun and domino play: The first ball rolls, and the little domino pieces tumble down the domino staircase in the most beautiful rainbow colors, either upwards or downwards depending on the setup. Click-clack, the pieces move along the domino staircase, and with a lot of momentum, the second ball zooms around the curves before knocking over the large dominoes. It's so much fun when the dominoes fall to the ground. Thanks to a clever click system, the Kullerbü ball track Kringel-Domino can be quickly assembled and invites rolling fans aged 2 and up to enjoy playful fun.