STEM Explorers Marble Runners

A2Z Science & Toys Verified independent store

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Discover marble mayhem inspired by our Toy of the Year Award-winning Tumble Trax® with this introductory marble run set. Using the set’s cling-back pieces, build tracks on walls an d windows to solve STEM challenges! No permanent adhesive required! Includes 13 track pieces, 2 balls, and double-sided challenge cards. Show more