The 2025 Topps MLB Series One Pack contains 12 standard-sized baseball trading cards featuring players from the Major League Baseball (MLB). Manufactured by Topps in the United States, this pack is factory sealed and made of card stock. Each pack offers a chance to collect cards from the 2025 MLB season, with the possibility of autographed cards authenticated by Topps. This sealed pack is a must-have for baseball fans looking to add to their collection of sports trading cards.