It was Newton who said that every action has an equal and opposite reaction - see this law of physics come to life in this classic toy! Newton's Cradle is a metal frame with five metal balls suspended from it with thin wire. Pull back the ball on the end of the line, and then let it go - watch as one ball is knocked out of line on the opposite end as the first ball collides with the rest in the middle! Try it with two, or three, or more - the same number of balls as you set in motion will continue to be knocked out of line at each end! This fascinating toy is sure to entertain for hours, and is the perfect size for any desk, at home or at school (at work, too!). A great gift topper or loot-bag addition!
Measures approximately 2.5" long x 2.25" wide x 2.75" high.