An awesome science project for kids to learn about green energy, this spider robot is powered by salt water. No batteries required! By putting a few drops of salt water into the fuel cell the water reacts with the metal sheets inside, powering your robotic spider and making it move it’s legs up and down.

Product Weight 0.174
Gender Boy
Brand 4M
Age 9-12 Years
Package Length (cm) 22
Package Width (cm) 19
Package Height (cm) 7