The 1989 Topps Baseball Cards set includes a potential total of 792 cards featuring various players like Don Mattingly, Gary Sheffield, Cal Ripken Jr., and Randy Johnson. These vintage cards are original and made of card stock, with a standard size perfect for collector's. The set is officially licensed by MLB and includes a variety of cards from different teams such as the New York Yankees, Chicago Cubs, and Baltimore Orioles, making it a valuable addition to any sports trading card collection. A truly exciting find for any baseball card enthusiast looking to delve into the world of Major League Baseball history.