The 2025 Topps Heritage MLB Baseball Factory Sealed Mega Box contains a total of 136 standard-sized trading cards featuring top players like Shohei Ohtani, Aaron Judge, and Mike Trout. This exclusive set from Topps includes rookie cards, parallel versions, and cards from teams like the New York Yankees, Los Angeles Dodgers, and Los Angeles Angels. Manufactured in the United States, this box is a must-have for baseball card collectors looking to add to their collection for the 2025 season.