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This marble run set is a well-designed 3D wooden puzzle toy based on great human engineering. It combines the beauty of science and machines, involving so many small gadgets. Build the set and crank the handle, watch marbles run crazy down each trapdoor, slope, and twist turns, bringing you a super fun building and playing experience.
This handcrafted marble run set features a whole back of trapdoor track, and it consists of a wheel lifter, a stair stepper, 4 straight rails, trapdoors, and a block track. An intricate system of cogs, gears, and wheels is full of crazy twists and turns.
It is good for learning principles of Science, Technology, Engineering, and Mathematics(STEM). Also a great gift for family and friends.
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