The 1987 M&M's Star Lineup Complete Set of 24 Baseball Cards is a vintage collection featuring top Major League Baseball players such as Don Mattingly, Cal Ripken, Jr., George Brett, and more. This set includes 12 uncut panels and is made of card stock, with each card measuring in a standard size. As an original product manufactured by M&M's in 1987, this set holds value for collectors looking to own a piece of baseball history.