- Engineer a working machine with a vibrating motor that sends rings moving up and down two poles, while exploring the principles of sound and vibrations with the Melissa & Doug Innovation Academy Moving Rings
- Includes all materials and hardware to build, screwdriver, instruction/innovation booklet, collectible Innovation Academy seal, 8 plastic rings, backer card; 2 AA batteries required, not included
- Learn about energy and vibration while building the moving rings machine and activating the motor
- Makes a great gift for preteens, ages 8 to 12, for hands-on, screen-free fun