Just got these last week. My daughter is 4 yoa and she is loving them. They were out of the pre-K packet. But the kindergarten packet has about 5 books that as re prek level. She has asked to work on her letters, shapes, and numbers everyday since we got them. You will need to invest in more than 1 dry erase marker, but they're pretty cheap in the stores. Plenty of pages and wipes easily.