MaxTronic Marble Run Building Blocks 109 Pieces

• Amazon now offers the MaxTronic Marble Run Building Blocks for Kids, now priced at $18.19 (list price $24.99).
• Prime members get free two-day shipping, and regular members get free shipping on orders over $35 within the contiguous U.S.
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Editor's Pick: If you have energetic little ones at home, this track building set can keep them entertained for quite a while. The pipes are transparent, so you can clearly see the marbles sliding from top to bottom—kids can't take their eyes off it. The pieces snap together tightly, so the assembled structure won't easily fall apart. With 109 pieces, it's enough for a few kids to tinker together, engaging both hands and minds.