Gecko Run: Marble Run Loop Expansion Pack

Gecko Run takes classic marble runs to the next level. Attach the tracks to vertical surfaces with the help of clever nano pads, which work like nanoscopic suction cups, to create a strong, but temporary bond. Designed for use with the Starter Set (sold separately), this expansion pack comes with over a dozen pieces, including a loop stunt; additional marbles and nano-adhesive pads; 2 extra tracks; and more. How much speed does the marble need to race perfectly through the loop? Experiment and find out! For ages 8 and up.