Marvel Comics Group set of 6 tin lithographed Superhero gumball rings, MINT. These rings include; Spiderman, Spiderwoman, Ghostrider, Incredible Hulk, and two other character heroes names unknown. These rings are about 5/8 inches across, and mounted on a brass like finished. Made of aluminum. These rings were sold out of gumball machines and are dated 1977 on each ring. Mint unused condition.