Brilliant 49-piece set made of durable bio-plastic - invent and construct cool marble runs.
Build your own exciting marble tracks with this excellent eco-friendly set. Made of durable bio-plastic, each of the 49 pieces snaps together to form thrilling tracks! With ramps, bridges, pipes and a special launching component, you can recreate the box designs or invent your own from scratch. Then drop the 12 wooden balls in the top and see where they come out. Great for developing co-ordination and logical reasoning skills - marble-ous!