The product is a 1988 Topps BIG Baseball 1st Series Pack containing 7 oversized trading cards featuring Major League Baseball players such as Ryne Sandberg, Barry Bonds, and Dave Parker. These vintage cards are made of card stock and come in a factory sealed pack from Topps. The set includes various notable players from teams like the Philadelphia Phillies, Chicago Cubs, and New York Yankees, making it a valuable collectible for baseball fans and collectors alike.