The product is a 1991 Stadium Club Baseball Pack, containing standard-sized trading cards featuring players from Major League Baseball (MLB). This vintage pack, manufactured by Topps in 1991, is unopened and includes cards made of card stock. Specifically, the pack includes cards of Ken Griffey Jr, making it a sought-after item for collectors of baseball trading cards. The pack is a nostalgic piece that encapsulates the excitement and thrill of baseball in the early 1990s, making it a valuable and unique addition to any sports memorabilia collection.