This timeless scientific instrument has been reimagined in a fresh, new design. Experiment with the gyroscope to learn about the physics of motion, forces, and gravity. See and feel gyroscopic forces in action. Have fun getting your gyroscope to do classic physics tricks like balancing on a tabletop, on a stand, or on a string. Spin the gyroscope inside the included clear plastic sphere and see and feel the forces acting on the sphere. It includes a 3-inch diameter plastic and metal gyroscope, a clear plastic sphere (also functions as a stand and a storage case),a 30-inch string, and an instruction manual. This classic scientific device is essential for anyone interested in physics.