Gravitrax PRO Extension Vertical These dogs may not sit

These dogs may not sit when you tell them to or fetch your paper

A not so grumpy grizzly

1 in Number of parts: 189 Level: Easy Assembly Time: 4 hours Recommended Age: 14+ Made in Ukraine

This brain teaser comes as an all-inclusive kit

Author Quinn Bouley is a prolific artist

Gravitrax PRO Extension Vertical These dogs may not sitTake your marble run higher and higher with the GraviTrax PRO Expansion set! Vertical effects for your track! What makes a great toy? GraviTrax checks all the boxes! Its a creative, modular, expandable track system that challenges children to use their imagination to design and build their own marble runs! Electronic free, GraviTrax construction sets use STEM friendly concepts while building critical thinking and problem solving skills. Completely