Moving rings game

Design a working machine with a vibrating motor that sends rings moving up and down on two poles, while exploring the principles of sound and vibration with the Moving Rings from the Melissa & Doug Innovation Academy.
Learn about energy and vibration as you build the Moving Rings machine and activate the motor.
Includes all materials and hardware needed for construction: screwdriver, instruction/Innovation booklet, collectible Innovation Academy stamp, 8 plastic rings, and a backing card. Requires 2 AA batteries, not included.
A portion of sales from all Innovation Academy products supports the Whitney Workshop in Hamden, Connecticut, which designs and teaches projects for children and adults that combine art, science, and invention.
Innovation Academy projects that support children encourage open-ended, hands-on exploration and experimentation. Learning in science, technology, engineering, and math is fun.