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Recommended Ages: 8 +
Learn about speed, gravity, and movement with Eitech's Run 'n' Roll Marble Run Construction Set. Children and adults alike will love to play with Eitech's durable and fun marble run, made with high quality steel. You'll love watching as the ball excitedly as it moves down the railway. Build up to 2 large marble run models with over 340 steel parts that stand over 2 feet tall. Learn different mechanical functions by building each model. Step by step illustrated instructions are included for easy to follow directions. Includes 5 balls.