The product is a lot of four 2026 Topps Series 1 Baseball Mega Boxes, each containing 196 cards made of card stock. These boxes are factory sealed and feature players from the baseball sport in the modern era. The cards are part of the base set series manufactured by Topps, with features like serial numbering and autograph authentication. The boxes are a great addition to any sports trading card collection for fans of the game looking for new and exciting cards to add to their sets.