The product is a single issue comic book titled Detective Comics #999, published by DC Comics in 2019. The comic features characters such as Batman, Robin, Catwoman, and the Joker, within the DC Universe. Written by James Tynion IV, the comic is part of the Detective Comics series and is intended for a general audience. This modern age comic is in color, English language, and features the Justice League of America superhero team. It is a collector's item in the genre of superheroes and comics, with a boarded format for preservation.