Djeco Zig & Go 45pc Set is a super fun set that allows children to set up the components in various ways to create innovative ball runs/chain reactions. It includes wooden dominoes, balls and other components. Gives children a great opportunity to learn concepts such as gravity, force and momentum. Enjoyable way to learn scientific concepts based on problem solving and critical thinking 45 pieces including dominoes, ramps, ball run components and more Inspires creativity, perseverance, STEM problem solving and critical thinking Recommended Age: 8+ years Designed in Europe by Djeco Toys Meets highest safety standards Wonderful kids birthday gift idea