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Ravensburger Gravitrax Starter Set Marble Run & STEM Toy For Kids Age 8 & Up – Endless Indoor Activity for Families

$41.99

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What you get – GraviTrax is an innovative marble run and STEM toy for boys and girls ages 8 and up. It comes with 122 pieces and is an ideal holiday or birthday gift for smart, curious kids.
Innovative – The GraviTrax interactive track system allows you to design and build your own race tracks and experiment with gravity, magnetism, and kinetics to propel your ball to the finish.