The product is a vintage single issue of Detective Comics #620-621 from 1990, featuring the character Bat-Man within the DC Universe. Written by Alan Grant and with cover art by Norm Breyfogle, this comic book is part of the US Comics tradition and is intended for a general audience. Set in the Copper Age of comics, this collectible item showcases Bat-Man in the Justice League of America, making it a valuable addition for fans of superhero comics and memorabilia.