This product is included with purchase of entire Game Setup or any Deluxe Game with cards. If you grew up with Strat-O-Matic’s split deck, you might want to try the advantages of the 20-sided die to decide the outcomes of those 1-20 splits. This sturdy, molded-plastic die means no more worn cards, no more shuffling between innings (or forgetting to do it!), no more fumbling with cards turned over accidentally. Best, it means a truly random 1-20 chance on every play.