With the Gecko Run: Snake Expansion Pack, you can send your marbles through a maze of sharp curves and see how it affects their speed.

• Intuitive: Tracks attach to smooth surfaces with the help of clever nano-adhesive pads that stick to smooth, vertical surfaces around your home
  
• Mess-free: The pads are not glue-based and can be quickly and easily repositioned without leaving behind damage or sticky residue.
• Open-Ended: Position in endless configurations on smooth surfaces 
  
• Educational: Develop engineering and problem-solving skills, and see physics in action. 
• Tracks made from renewable raw materials