Size is as-packaged, or the diameter of loose marbles. ("D" is the diameter of round items other than marbles.)
: 13 1/8 x 4.5 x 18 7/8"
Build the marvelous marble run that twists, turns, races, launches and spins marbles at incredible speeds! Stack and click together to create hours of engineering fun. A fascinating toy for young children which requires dexterity and imagination.
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Mechanical Marble Run (197 pieces)
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