Thames & Kosmos Gecko Marble Run Expansion - Marble Run Twister Track Set for Kids | STEM Building Toy | Fun Educational Game for Family & Classroom Play

With the twister, you can give your marbles a real spin. This not only brings extra fun to your Gecko marble run, but also makes the laws of physics visible ... vortex funnel for your Gecko Marble Run.

The additional track elements mean that the marble run reach is expanded, so you can cover even more tiles, doors, windows, shelves and other surfaces.

Go for a spin and and see centripel force in action. Experiment and find out!

Gecko Run Snake Expansion 550204

• Suitable from 8 years
• Full instructions
• Introduces science concepts including chaos theory
• Tracks made from renewable raw materials
• Configuration on smooth surfaces
• 814743018785