The product is a highly collectible 2025 Topps Industry Conference Mark McGwire trading card featuring the St. Louis Cardinals player. This limited edition card is autographed by Mark McGwire and is numbered out of 10, making it a rare and sought-after item for baseball card enthusiasts. The standard-sized card is part of the Major League Baseball (MLB) league and is authenticated by Topps, ensuring its authenticity and value for collectors.