10 pairs of laminated “Irregular Plurals” Flash Cards. These IRREGULAR PLURAL 2″ x 2″ cards depict most commonly familiar irregular plurals to the pre-schooler. Each pair comes with one picture of a single item, and one picture of multiple items of the same object. These flashcards are printed on durable stock paper. These flashcards can be used in the classroom or home, or during therapeutic sessions. There is enough variation of the cards to run 10 trials.