The product is a 2019 Panini Elite Dominican Prospect baseball trading card featuring an autograph from Mets player Sebastian Castro. This sports trading card is an original rookie card from the Panini Authentic series, showcasing the player's signature on a standard-sized card made of card stock. The card is from the Dominican Prospect League Signatures insert set and is aimed at collectors interested in Major League Baseball memorabilia, specifically featuring players from the New York Mets team.