The Topps 2023 Series 1 Flagship Marcelo Mayer #73 Boston Red Sox baseball card is a standard-sized trading card featuring the Major League Baseball player Marcelo Mayer. Manufactured by Topps, this original card is part of the 2023 Topps Chrome set and is made of card stock. This collectible item showcases Mayer as a member of the Boston Red Sox and is a must-have for fans and collectors alike.