World’s Longest GraviTrax Marble Run

We’ve seen some impressive marble runs made with GraviTrax, however most are designed for a number of marbles. Gravi Trix and Fancy Marbles constructed what they are saying is the longest single-marble run ever. The identical marble should go begin to end, Energy Stones are used solely as soon as, and it was filmed in a single steady take. See when you can guess how lengthy it takes.