Thames & Kosmos – 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. But watch out: only if you place the snake correctly in your marble run will the marbles make it through!

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

• 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