The Perfect Desktop Toy!
This Small Newton's Cradle With Black Base is a fun, educational, and clever physics toy that demonstrates the Laws of Conservation of Momentum and Energy, a pendulum, as well as friction and damping effects.  Pull back one steel ball, let it go, and watch the fascinating effect the collision has on the other balls.  Now pull back one ball from each end and let them go at the same time and see what happens.  How many different collision combinations can you come up with?  The Newton's Cradle is a fun classroom demonstration as well as an entertaining toy for children and adults!   The base and frame are made of high quality plastic.  Measures 3.63" x 4.13" x 4.25" high.