ROKR Marble Run are 3D wooden puzzles that combine the fun of building with the excitement of a working marble run. They are designed for both children and adults, offering a challenging and rewarding building experience. These are not just puzzles, they are a fantastic piece of kinetic art. They are the best engineering toy for kids and adults. Great for learning how gear transmission work and how potential energy is created and converted into kinetic energy. But don’t think this is just a kids game. All the puzzles are very challenging. Enjoy building them and exhibit your fantastic piece of art anywhere you like.

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