Newtons Cradle Balance Balls
These little steel balls will keep you entertained all day
The back and forth motion is a soothing experience you'll enjoy day after day, learn about the conservation of momentum and energy
Desktop display version of Newton's cradle performing based on Newton's Law
Balls are made of stainless steel. Size Approx: L6.2" x W3.5" x H4.5"
Conservation of Momentum and Kinetic Energy