Build your own marble run with the many different bridges, spirals, tubes, and wheels! This construction game allows you to recreate the numerous tracks shown on the packaging or design your very own routes. With so many pieces, there are virtually endless combinations. Playing with a marble run is one of the best ways to encourage your child to think logically, unleash creativity, and strengthen important skills such as fine motor skills and hand-eye coordination. The toys in Quercetti's PlayBio series are made from a special bioplastic that consists of 40% wood fibers. The natural component is highlighted by the warm colors of the toy and a wonderful scent reminiscent of an untouched forest. Quercetti's marble runs are made from high-quality, shatterproof materials for maximum precision and long-lasting fun. Suitable for ages 3 and up.