The product is a 2023-24 Upper Deck DC Annual Knight Terrors Green 52/99 trading card featuring Harley Quinn. This single-insert card is serial numbered and part of the Non-Sport Trading Card category. Manufactured by Upper Deck, the card is an original release and is a parallel variety in green. With a population of only 1, this card is a highly sought-after collectible for fans of the Harley Quinn character within the trading card community.