4M Green Science - GROW-A-MAZE

With 4M Kidzlabs Green Science Saltwater Power Robot Build a miniature robot that is powered by salt water. With just a drop of salty water, the robot can move themselves. This does not require batteries!
The package includes mechanical parts, carbon paper, aluminum paper, dust, engine, dropper, screws, wheels and detailed instructions. Required but not included: salt, water and a spoon,
Suitable for children over 8 years.