Bundle includes: - Star Right Subtraction Flashcards with 2 Metal Binder Rings - 169 Self Checking Flashcards - for Ages 6 and Up - Star Right Addition Flash Cards - 2 Metal Binder Rings - 169 Hole Punched Math Flash Cards - For Ages 6 and Up MATH SKILL DEVELOPMENT: 6.4 x 1.8-inch flashcards will help teach your child basic addition and subtraction CONVENIENT AND ORGANIZED: math facts flashcards are hole-punched to easily organize cards using the included metal rings Both sets of flash cards are new; never used; plastic sealed