Marble Run Construction Set

Learn about speed, gravity, and movement with Eitech's 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 balls move quickly down the railway. Build up to 2 large marble run models with over 340 steel parts that stand over 2’ tall. Learn different mechanical functions by building each model. Step by step illustrated instructions are included. Includes 5 balls.