Dive into an engineering exploration with PicassoTiles' 100-piece marble run maze building block set. 16 quarter round turns, 34 magnetic square track tiles, 20 long straight slides / supporting columns, 8 straight slides, 6 U-turn slides, 3 spinning funnel trays, 3 slopes, 4 equilateral triangles, 5 steel-weighted marbles, 1 square
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