With the Gecko Run: Loop Expansion Pack, you can bring even more speed, action, and experimental fun to your Gecko Run marble run. How much speed does the marble need to race perfectly through the loop? Experiment and find out!

The Loop Expansion Pack comes with over a dozen pieces to complement the Gecko Run Starter Set, including a loop stunt; additional marbles and nano-adhesive pads; 2 extra tracks; and more.