Photo 1 of Ravensburger GraviTrax Starter Set - Gravity & Magnetic Marble Game - Challenging STEM Toy for Kids - Brain-Building, Educational Gift - Engages Critical Thinking & Problem Solving - Ages 8+

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Photo 1 of Ravensburger GraviTrax Starter Set - Gravity & Magnetic Marble Game - Challenging STEM Toy for Kids - Brain-Building, Educational Gift - Engages Critical Thinking & Problem Solving - Ages 8+Photo 2 of Ravensburger GraviTrax Starter Set - Gravity & Magnetic Marble Game - Challenging STEM Toy for Kids - Brain-Building, Educational Gift - Engages Critical Thinking & Problem Solving - Ages 8+