Glantop Newton's Cradle Art in Motion Medium The Newton's Cradle teaches principles of physics in a fun, hands-on way. Pull back the polished steel ball on one end and let it fall. When it hits, it transfers its energy to the ball at the far end of the line, setting it in motion. Experiment with releasing multiple balls at once and observe the effect. The Newton's Cradle makes a fun conversation piece, and fits perfectly on a desktop or coffee table. Recommended for ages 5 years and up. Challenge your children's imaginations and keep them active with Toysmith. Committed to providing the most imaginative toys along with the highest safety standards, Toysmith has toys appropriate for all age groups. Toysmith offers toys for any kind of play: active play, science and discovery, arts and crafts, impulse and novelty toys, and nostalgic retro classics. Recommended Age Rage Five & Up