The product is a vintage DC comic book titled "Nightwing: Our Worlds at War #1" from September 2001. This single issue features the character Nightwing within the DC Comics Universe, with artwork by Dixon, Leonardi & Lowe. The comic falls within the genres of action, superheroes, and adventure, and is a part of the Modern Age era of comics. Published by DC Comics in the United States, this comic book is a valuable collectible for fans of the genre.