Crazy Marble Run DIY Building Blocks Set - 130 Pcs/Set
Design thrilling tracks with this 130-piece marble run set that combines building fun with motion for endless STEM play possibilities.
Features:
• 130 pieces including ramps, curves, and funnels
• Encourages problem-solving and creativity
• Builds hand-eye coordination
• Colorful and durable for long-term use
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Crazy Marble Run DIY Building Blocks Set - 130 Pcs/Set