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$34.99
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Made up of hollow stacking cubes and a variety of perfectly flat tracks. The paths cut out of each track widen almost imperceptibly from one end to the other, creating an invisible slope that propels the marbles forward. Watching them go is like magic in slow-mo! Medium Set with 73 pcs Unique marble run with marbles propelled by widening tracks Encourages spatial reasoning, creativity, engineering skills, problem-solving Tracks suspended by hollow stacking cubes Builder and Deluxe sets - features base grid for added stability Follow guided builds or invent your own structures! Builder set includes 1 catcher, 1 topper, 55 risers, 5 stainless steel marbles, 10 unique tracks, a base grid Recommended for ages 8+
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