This set of colorful alphabet learning cards from School Zone Publishing includes 52 flash cards, three index cards, and one parent card that has suggestions for parent/child learning activities. There are two, double sided flash cards for each letter. One side illustrates a picture, and the opposite shows the picture's name and its beginning letter in uppercase and lowercase. These flash cards are great for preparing pre-schoolers and kindergartners for spelling and reading. Each card has rounded edges for easy sorting and measure 3.5" to 6.5." Ages 4-6.