A wooden chain reaction, puzzle and construction game for children aged 5 and over. Children copy the 3 designs in the instructions booklet to build the courses, or they can make up their own — the possibilities are endless. A great introduction toy to learn STEM concepts such as gravity, force and momentum, and how they can create a chain reaction. What's in the box?42 wooden and metal pieces packed into a compact 33cm x 25cm x 5.6cm retail box — everything needed to start building right away. Why kids love itWatch their fascination as each piece triggers the next in a satisfying chain reaction. Kids can follow the included course designs or invent their own — creativity and problem solving go hand in hand. What they'll learnHands-on play develops cause & effect understanding, fine motor skills, and creative thinking — core STEM foundations wrapped in pure fun. Grows with your collectionCompatible with all other Zig & Go kits, so the fun keeps expanding. Care: Wipe clean with a soft damp cloth. Wipe dry.Materials: Wood, metal, rubber | Designed in France, made in China Suitable for ages 5–99 years.