Your little physicist can amaze friends with our Mystery Stick. The mystery stick operates on complex physics. The basic concept of rotating a prop on a notched stick has been around form many years. Vibrations produced by rubbing the notches can be controlled to make the prop turn clockwise or counterclockwise. Have fun with your friends by making it appear that the prop changes direction in response to a spoken word or phrase.
Measures 5.5 inches long. Made of wood. Operating instructions included. Recommended for ages 6 and older. Mystery Stick is made in the USA.
