NOT a Newton’s Cradle- It’s an Incredible Wave Pattern SimulationSimulating phases, beats and frequencies, this executive desk toy comes with a initiator stick so you can simultaneously release all the pendulums at once. When released, the pendulums will swing back and forth to quickly form a wave pattern then cycle through different phases. It’s astoundingly hypnotic! Features nine  7/8th inch steel balls. Includes a guide that explains the science.Measuring 13" across, this model ships flat and requires some simple assembly.Visit the DOCUMENTS tab (above) to view the included educational guide.* Note: Although may look like one, this is NOT a Newton's Cradle. The balls are hung on an angle so they swing parallel to each other. They are not intended for collisions.