age bag
n.— «And parents can take home (in the way they might “withdraw” a book) what is called an “age bag.” Age bags are filled with all sorts of teaching aids and reading incentives, designed to capture the interest of one-, two- or three-year-olds.» —“Why closing local libraries is a tragedy for us all” by Roy Hattersley Daily Mail (United Kingdom) Jan. 7, 2008. (source: Double-Tongued Dictionary)