This expansion set for the Hubelino Marble Run offers even more building possibilities! The set can also be used separately. Thanks to the funnel, the marbles initially circle slowly and then accelerate downwards. This allows many marbles to rotate in the funnel at the same time. The funnel also rotates, allowing you to position it anywhere you like within the marble run. The elements and building blocks also connect to Duplo building blocks. Box contents: 13 track elements, 24 building blocks, a base plate, 4 marbles, and 2 funnels.