70 piece marble run set features a vortex chamber. Watch as the marbles spin and wind through the vortex. Features exclusive double entrance large funnel and two exclusive spiral tracks. Base pieces offer sturdy construction. Extra long bridges for buildi

 

Filed under: Educational Toys Planet, Base Pieces, Bridges, Double Entrance, Funnel, Marble, Marbles, Spiral, Sturdy Construction, Vortex, Vortex Chamber