Brand: Clementoni. MPN: 20553410. Each Action corresponds to a Reaction, and there is no better way to understand it than the domino effect. With this incredible set, children can have fun creating surprising ball circuits with fascinating chain reactions! Among the many components is a triple start with a funnel, to start 3 balls at the same time on 3 different circuits. Numerous dominoes to position and drop along the course and a transformation kit to roll the marbles on the rails or on the ground. Also included in the box, a ladder to position dominoes uphill or descent and numerous connections to create "maxi dominoes" to insert along the course.