GraviTrax The Game - Flow

GraviTrax The Game - Flow GraviTrax The Game - Flow has 30 logic challenge cards with varying levels of difficulty, marbles, accessories and extensions to test you. Challenge cards make you think. You have to build the right route with the elements at your disposal to make the marble run the track from start to finish. ⚠️WARNING: CHOKING HAZARD - Small parts & small ball. Not for children under 3 years.