Zig and Go, track construction set, Music A collection of sets for building fascinating tracks with chain reactions and sounds or even a specific rhythm with this complex set. The movement, slow at first, but then increasingly alert, leads to the passage of the track with changes of direction and musical sounds. Construction game: children will have to use their skill to position the pieces and create a track. Chain reaction game: children learn about the causality of movements, the ingenuity and magic of chain reactions, cause and effect! Thinking game: children must think about how fast the pieces will move - which depends on the weight - and approximate the distances between them. Step-by-step instructions for 3 models are provided. Video accessible via a QR code. Invent endless tracks for hours of fun, alone or with others. Contains 52 premium, colorful wooden and metal pieces. All kits in the collection are compatible, for increasingly inventive action-reaction courses. Award-winning set in 2021. Recommended age: +8 years. Made of wood and metal. According to EN71&ASTM regulations. WARNING: Not recommended for children under 3 years, contains small parts, choking hazard. To be used under the direct supervision of an adult. Manufacturer: Djeco, France