Build your own marble runs with this exciting challenging building set, now made from sustainable bioplastic. Reproduce the designs shown on the box or have fun experimenting with new designs. The interlocking canals, bridges, pillars and spinning wheels can be combined in countless configurations that guarantee hours of great fun. Marble Runs promotes creativity and logical reasoning, both of which are required to accurately place and fix components to get the marbles rolling. All parts are made of high quality materials. They are unbreakable and durable and allow you to build solid and precise structures that will surprise everyone. Fun and sustainable: made with a special biocomposite of wood and plastic fibers that reduces carbon emissions and is 100% recyclable Hands-on learning fun: designing and building structures stimulates creativity and reasoning Requires imagination - kids can get really creative building all kinds of unique structures Smart Toys to Promote STEM/Steam Learning: Quercetti toys are designed for kids ages 3-12 to encourage reasoning, stimulate creativity, and hone physical skills. Quercetti toys span a wide range of categories and stages, from early skill builders to craft activities, pure educational products to advanced building sets. Made in Italy for over 70 years. Quercetti has been making high-quality, fun toys that encourage children to think, reason, and solve problems.