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DIY 3D Mechanical Gear Transmission Model Assembly Wooden Puzzle Education STEM Science Teaching Tools Children's Toys

DIY 3D Mechanical Gear Transmission Model Assembly Wooden Puzzle Education STEM Science Teaching Tools Children's Toys

128 reviews
$92.02 $45.09 Save 51%
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Availability: In Stock (100)
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DIY 3D Mechanical Gear Transmission Model Assembly Wooden Puzzle Education STEM Science Teaching Tools Children's Toys
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DIY 3D Mechanical Gear Transmission Model Assembly Wooden Puzzle Education STEM Science Teaching Tools Children's Toys - Image 6
No specifications available.

4.5

Based on 128 reviews

John D.

Great product! Works exactly as described.

Posted on January 26, 2026

Sarah M.

Very good, but shipping took longer than expected.

Posted on January 21, 2026

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