Top STEM Building Toys

Intricate 3D magnetic marble run built from 100 piece PicassoTiles set with colorful marbles, slides, funnels, and toy blocks for STEM play.

100pc Marble Run
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3-in-1 Set +Traffic Kit
New Toy!

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Army Tank Building Set
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30pc Nano Travel Set
Save 25%

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10"x10" Brick Plates
Save 30%

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100pc Classic Set
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112pc Magnetic LED Track
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115pc Engineering Kit
Save 50%

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Themed Adventure Sets

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Ages 3-5

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Ages 6 and Older

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