Gravitrax.trek.pub
The mousetrap style marble launcher gives a 46 tile height gain for GraviTrax marble runs. It is built with 2 GraviTrax Zipline …
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Wow
Cool trick!! 😆😆👍👍👍
thats a really cool Idea🤩🤩🤩👍👍👍
Crazy🤪🤯