Classic toy for 75 years. Cast, machined, painted and balance-fitted all by hand. Demonstrates properties of gyroscopic inertia, angular motion, torque, rotational inertia and rigidity in space as first recorded by Sir Isaac Newton. This gyroscope was first produced in 1917 under the name of 'Chandler gyroscope'. It has remained relatively unchanged and has been a classic educational toy for generations. It continues to fascinate young and old alike with its mysterious force that seems to defy gravity. Whether you just want to have hours of fun with it just as a toy or whether you want to learn more about physics/science of gyroscopes. With each Tedco 'Original' gyroscope you get: The Gyroscope, Pedestal/tower, Pull string ,Clear plastic cube to store and display your gyroscope, Complete set of instructions -- For Ages 6+.