The 1991 Topps Toys R Us Baseball Rookies Set Factory Opened features a standard-sized trading card set of Major League Baseball rookies from the year 1991. This vintage set includes 33 cards made of card stock and manufactured by Topps. Notably, the set includes rookie cards of baseball stars Frank Thomas and Larry Walker, making it a desirable collection for collectors. This original set is a unique find for fans of classic baseball trading cards.