The product described is a single unit comic book titled "Heroes In Crisis #1" featuring a silver foil Francesco Mattina New York Comic Con variant cover. This limited edition comic was released in 2018 and has sold out quickly. The comic belongs to the US Comics tradition and showcases Batman as the main character, with artwork by Francesco Mattina. This collectible item is a must-have for fans of modern age comics, especially as it is a rare and sought-after variant cover from a popular convention.