I have had many requests for a hypnotic crystal ball and chain. I finally have been able to secure these and am offering them now for the first time. The crystal ball measures one inch in diameter and is actually made of genuine methacrylate which is crystal clear. A ten inch chain is secured to the crystal ball. You use this device the same as the regular crystal ball but this time you incorporate the pendulum effect which naturally causes the quick tiring of the eyes.