This 2021 Diamond Kings Sports Trading Card features San Francisco Giants' Buster Posey, autographed by the athlete himself and authenticated by Professional Sports Authenticator (PSA). The card is a one-of-a-kind custom Blackout edition with a PSA 10 grading, making it a rare find for any baseball fan and collector. The card is manufactured by Panini and licensed as an original reprint. Its parallel/variety is Diamond, and it is part of the Baseball sport category in the Trading Card Singles and Sports Mem, Cards & Fan Shop categories. The card is a valuable addition to any collection, with its unique features that make it stand out from the rest.