Newtons Cradle (Extra Large)
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!