Ravensburger GraviTrax Starter Set - Marble Run & STEM Toy
My boys love this - it's got loads of possibilities and is really creative - just be warned - you'll find marbles and bits of it everywhere like LEGO!
As seen on TV - GraviTrax is an innovative marble run and STEM toy for boys and girls ages 8 and up It is an ideal christmas 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 engineering gravity magnetism and kinetics to propel your ball to the finish
Infinitely Expandable - Gravitrax in fully expandable with a large range of expansion pack and accessories!
Develops critical skills – Playing and building with GraviTrax builds spatial reasoning and planning skills and provides a great stealth learning experience
Clear instructions – Comes with clear instructions so that you can start construction and start playing with this fun brain game within minutes
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