The 2025 Topps Series 1 trading card set includes special inserts from the 2024 Greatest Hits collection. You can choose to complete your set with any of the featured cards from various MLB teams such as the Philadelphia Phillies, New York Yankees, and Los Angeles Dodgers. Each card is an original print manufactured by Topps in the United States, and they are all standard size sports trading cards with a thickness of 20 Pt. These rookie inserts are a must-have for baseball fans looking to add unique and collectible cards to their collection from the 2025 season.