Thames & Kosmos Gecko Run Marble Run Challenge Edition by Thames & Kosmos | Vertical Marble Run w/Flexible Tracks, No-Mess Setup | Challenge Cards for a Head-to-Head Engineering Design Game for Teams or Solo Play

GAME ON: This Gecko Run Challenge Edition comes with all the parts needed to challenge yourself or others to epic marble run competitions, including 32 challenge cards with suggested designs and engineering tasks to tackle. Who can complete each challenge the fastest? Can you create the fastest run using only specific parts?

WHAT'S INCLUDED: Comes with enough parts for two kids (or two teams) to build their marble runs simultaneously, including 2 rapid-fire launchers, 2 marble catcher devices, and 32 challenge cards, each with a unique engineering principle to explore and tackle! Can be used independently or with any of the Gecko Run expansion packs.

INNOVATIVE: Design your own vertical marble runs with this specially designed system of flexible tracks (made from renewable raw materials) that does not require any support structures, allowing you to build higher with fewer pieces.

INTUITIVE & MESS-FREE: Tracks attach to smooth surfaces with the help of clever nano-adhesive pads that create a strong but temporary bond; the pads are not glue-based and can be quickly and easily repositioned without leaving behind damage or sticky residue.

OPEN-ENDED & EDUCATIONAL: Combine different configurations and environments for endless possibilities; develop engineering and problem-solving skills and see physics in action.