The product is a 2021 Bowman Draft Chrome 1st Refractor trading card featuring Marcelo Mayer, a rookie player for the Boston Red Sox in Major League Baseball. Manufactured by Topps, this card belongs to the Topps Chrome Update Series Sapphire Edition and is graded BGS 9.5 MINT. This highly sought-after card is a parallel variety with a shiny refractor finish, making it a valuable addition to any baseball card collection.