GraviTrax Marble Run Kits
gifts | kids | magnets | marbles | stem | toys
Puzzle maker Ravensburger’s kits are a blast for kids and kids at heart, letting you easily assemble fast-moving and complex marble runs. Modular components encourage experimentation, and include loops, magnetic cannons, and other tricks. The starter set comes with 122 pieces, while we’d go for the 240-piece XXL set.
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