The product is a sealed 1991 Upper Deck baseball card factory set featuring 800 standard-sized cards, including 3D holograms. This set is an original release by Upper Deck and is dedicated to Major League Baseball. It includes rookie cards and is a must-have for collectors looking to complete their collection of sports trading cards from the 1991 season. With its unique hologram feature and comprehensive base set, this factory set offers a nostalgic trip back to baseball's past with a touch of futuristic flair.