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Title: 4 & Up Have FUN While Inadvertently Learning Concepts of Physics, Mechanical Building, Logic and Creativity
Review: We bought this for our 4-year-old for Christmas. He LOVES this Marble Run. Initially, an adult will need to help explain the concepts but the kid learn to play with it independently. My husband is an EE and he and my son have spent hours & hours playing with this. My son has also learned to come up with his own designs that work beautiful.
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