With the GraviTrax Junior My Jungle starter set, children can immerse themselves in the world of the jungle and create a beautiful marble run. This GraviTrax Junior My Jungle starter set transports children to the world of the jungle. The set contains everything they need to immediately start building their own unique marble run. With a wide variety of elements and animal figures made of wood and bioplastic, children experience the jungle theme up close while decorating and playing. Building and playing fun are uniquely combined! GraviTrax Junior is an interactive marble run system. Children can build their own marble run world to their heart's content and decorate it with a variety of different themed sets. • The set contains 100 building pieces and decorative elements.