The game was created by Ed-u-Cards Manufacturing Corporation, New York.
The deck consists of 36 cards representing a variety of base hits, (mostly singles, but only one home run), balks, stolen bases, a hit-by-pitcher, balls, strikes, and a variety of outs.
In some editions from the 1960s, strikes and outs are color-coded orange, balls green, and all cards that advance a runner, blue, while in late-1950s editions, strikes and outs are green, balls blue, and cards advancing a runner, red.
The cards are not dealt; instead, whichever player is "at bat" turns over cards from a freshly shuffled deck until put out three times, following the actions named on the cards: An inning consists of each player getting a turn "at bat" for three outs; a game consists of nine innings.
This game had a limited print run, but decks of varying vintage can be found online.