Clementoni Action and Reaction Cross Road and Glow Effect Construction Set is a new spectacular Action and Reaction kit with an astounding effect: the marbles glow in the dark. The transparent tracks make the glow-in-the-dark effect of the marbles even more eye-catching and children can embark on stratospheric challenges in the dark as well.

Tracks can be made even more exciting with an expansion kit that adds crossover tracks, a junction and double start. An engaging game that stimulates creativity and resourcefulness, introducing children to the principles of physics in an easy fun way.

Suitable for ages 8 and up.