Koontz™ Boomerang Wheel
(Click on image for larger view) |
8 years & up. Build a rolling boomerang and explore how it moves! Discover the secret to the wheel's motion with this Koontz™ Boomerang Wheel kit! Did you know that the wheel conserves energy by converting potential energy into motion? Made from durable, lightweight, recyclable cardboard. Includes simple step-by-step instructions and a fun activity booklet. 15 pieces.
Copyright © 2015. All rights reserved.