The product is a comic book titled "Batman & The Joker: Deadly Duo Batman Day 1" published by DC Comics in 2023. It features characters such as Joker, Batman (Bruce Wayne), and Harley Quinn. The comic book is signed by Marc Silvestri, who is also the artist and writer of the comic. The cover art is also done by Marc Silvestri. The comic book is graded 9.8 Near Mint/Mint by Certified Guaranty Company (CGC).