- A perfect desk toy which is fun and scientific
- Comes with red base of fine workmanship
- Pull one back and let it go----as it strikes the motionless balls, watch the energy transfer and the ball at the other end launch itself into as much space as its tether will allow.
- If you do it with two balls, two balls will swing on the other side.
- It's addictive. Go get one now and begin to enjoy the satisfying "clack clacking" sounds!
Dimensions: 7.09 in x 5.91 in x 1.57 in
Weight: 18.24 oz