Incredible Hulk Avengers Radioactive Symbol RingHold up the green radiation symbol for the Hulk as a friendly "warning" when you wear this fun Incredible Hulk ring! The Incredible Hulk Avengers Radioactive Symbol Ring is silver and stainless steel. The top features the green "radiation warning" emblem that symbolizes the raging green giant from Marvel Comics' The Incredible Hulk series. The "A" symbol from The Avengers signifies Hulk's membership in the Avengers crime-fighting team. "Hulk smash!"