Details
These marbles are ready to tumble down a run designed by you! Using the set’s cling-back pieces, kids build tracks on walls and windows to solve the included stem challenges! Strengthens essential kindergarten stem skills, including critical thinking, problem solving, and engineering. After they master the set's progressive stem challenges, kids can even build their own! Includes 13 track pieces, 2 balls, and 10 double-sided
stem challenge cards .Ages: 5+
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