The product is a 2025 Donruss Optic Black Circles Prizm trading card featuring rookie player Marcelo Mayer of the Boston Red Sox. This original card from the Optic set is a standard size and showcases the player in a parallel variety design. Made by Donruss, the card is in English and is part of an insert set specifically designed for Major League Baseball collectors. With its unique features and tie-in to a popular sports team, this card is a desirable addition to any baseball card collection.