A great way to learn patience and develop balance by maneuvering the marbles through the maze. Just learning? Focus on just one ball - move it from the outer rim to the middle, or vice verse. Expert? Move all three balls from the outside to middle circles.
Nothing to Lose! In-Line Metal Marbles will not come out.
Balance is so important for neurodevelopment because it is estimated that 85 % of neuro pathways have relays in the cerebellum. Balance exercises have been demonstrated to improve speech fluency, reading abilities, and focus and attention skills. (source)