The product is a highly collectible 1989 Boo 31 card from the Carddass Super Mario Bros. 3 set. This Japanese card features the character Boo and is part of the Super Mario Bros. card series. The card has been professionally graded as a PSA 10, indicating it is in mint condition. It appeals to collectors of CCG individual cards, specifically those interested in rare and unique Super Mario Bros. cards from the late 1980s.