Gravitrax STEM Marble Run Set - $20 (NW Austin)

Gravitrax STEM Marble Run Set 1 thumbnail

condition: excellent

make / manufacturer: Ravensburg

model name / number: Gravitrax

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Howdy!

We are selling a Gravitrax STEM marble run starter set with expansion. With this kit you create a track of multiple levels and puzzle together a route for marbles to run. It's a blast to build and just as fun to trial and error your way to seeing your marble run the course you build. It has a book of pre-designed courses you can setup, but you're welcome to create your own! This includes both the starter set and expansion, so you'll have a lot of different features you can mix and match in your build.

Here's a video of it in action. https://youtu.be/5PKBfLktprg?si=I5wcUCENq64pub4M&t=86

Thanks!

post id: 7941786053

posted: 2026-06-18 11:57

updated: 2026-07-01 07:12

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Gravitrax STEM Marble Run Set - toys & games - by owner - sale -...

Howdy! We are selling a Gravitrax STEM marble run starter set with expansion. With this kit you create a track of multiple levels and puzzle together a route for marbles to run. It's a blast to...