A Ralston cereals premium, sponsor of the radio show. Gold plastic base has "TM" initials printed along the top front and reverse edges of the ring base. Ring top has clear plastic dome and interior center shows black area representing the tiger eye. With exposure to light the entire dome glows brightly in the dark except for this dark area with the resulting image representing a tiger's eye reflecting light. Essentially Mint and glows like new. Scarce and with very well formed "eye."