Description
Let your marbles tumble down these crisscross slides and see which way they'll come out! Add more possibilities, more challenges, and more creativity to your GraviTrax tracks with this PRO Action Block! It requires at least one Starter Set and can then be combined with any GraviTrax element.
Content/Presentation
1 Helix action block, 1 illustrated user guide in French
Content/Presentation
1 Helix action block, 1 illustrated user guide in French