Marble Genius Marble Run Extreme Set! How to Put Together Marble Run Extreme Set.

Marble Genius Marble Run Extreme Set Assembly Video! This Marble Genius Marble Run Extreme Set has 125 pieces! Whether you have the Starter Set, Super Set, or the Extreme Set, this assembly video will help you understand how to build and construct any of the Marble Genius Marble Run Sets. The sets come with their own marble of different colors and the pieces are compatible with Marbulous Runs too. If you&like to teach your kids colors and counting, you can purchase colored gumballs and they will work fairly well with the sets too. The toy is not recommended for children under 3 years of age due to the small pieces that can present a choking hazard. But these smaller toddlers can still enjoy the video.