Band Powered Copter

Togo science is just one of the educational toy they make. They also make recycled material toys in their Green Powered line and also mathematics with their calculator toys. This copter is meant to show your child how helicopter propellers work when spun at high frequencies. The air pressure they create because of their downturned angle while spinning stationary on the mid pole is what creates this phenomenon that was realized many decades ago. 

 9 inches (H) x 9 inches (W) x 2.75 inches (D)