$The product is a 2026 Topps Series 1 base trading card featuring Mason Barnett of the Oakland Athletics. This English-language card is part of the base set and is made of 20 Pt. card stock. It is an original, unautographed card number 273 in the Major League Baseball (MLB) league, manufactured by Topps in the United States. This standard-sized card is a must-have for fans of the Oakland Athletics and collectors of baseball trading cards.