The product is a 2024 Bowman Sterling Prospect Refractor /199 trading card featuring baseball player Marcelo Mayer from the Boston Red Sox. This single-parallel card is an original rookie card manufactured by Topps in the United States. It is part of the Major League Baseball (MLB) set and is in English language. The card is made of card stock and is a limited edition with a print run of 199, making it a valuable collectible for fans and collectors of sports trading cards.