The Activity Desk Expansion Pack 4-in-1 Pre-Kindergarten Expansion Pack Bundle comes with four expansion packs intended for ages 2-4: Numbers and Shapes, Get Ready for Preschool, Nursery Rhymes, and Animals, Bugs and Critters. Each expansion pack includes a cartridge and four colorful double-sided activity pages, which is for use with the VTech Touch and Learn Activity Desk Deluxe and the Explore and Write Activity Desk (each sold separately). Durable cards easily wipe clean and will not tear!