The marble run is your child's first science toy. They have an idea. They build the idea. They test the idea. They evaluate the results. And they build again. You'll love our Marble Tracks because of how easy it is to stack the pieces and play. You'll love our Marble Tracks because of the sustainable beech hardwoods used to make the pieces of highest quality. You'll love our Marble Tracks because your children will play for hours, not even knowing they are learning as they play. Curiosity starts at an early age. Marble runs foster that curiosity in children.