Create your own marble runs with this exciting construction set. Reproduce the models pictured on the box or enjoy experimenting with your own designs. Interlocking chutes, bridges, columns, spinning-wheels, spirals and funnels can be combined in infinite variations for long-lasting fun. This toy stimulates creativity and reasoning both of which are required to build impressive-looking structures with the correct angles of inclination. With the exciting elevator you can create endless cascades of marbles with mesmerizing visual effect. With 60 years of experience creating educational toys, Quercetti has contributed to generations of children engaging in beneficial play that encourages creativity and stimulates intuitive reasoning.