It comprises a simple small accessory pack which can be purchased separately or with any Playbook� story or kit, and allows you to split a typical one-story set of six books into three Lend & Extend� take-home packs. These packs are designed to be checked out of the classroom or school library by different students, three at a time, and returned back to school. You can stock your library with a variety of story sets (each with a Lend & Extend� Accessory Pack that you can even duplicate on your own) so that more than three students at a time can enjoy the benefits of at-home reading. Please remember to indicate the number of "Lend and Extend" Packs you would like to purchase upon checkout. You may also purchase Lend & Extend Reader's Theater� Accessory Packs by Purchase Order at the same time as any other book purchases you may wish to make.