These handy little holders have a multitude of uses inside the classroom and elsewhere! Put them on a bulletin board for an instant job chart! Add them to a classroom center to manage the work that students do there. Use them to hold craft sticks, game pieces, and 3 x 5 index cards. Of course, you can put them inside the books in your classroom library, too! Library pockets measure 3.5" x 5.5", and include 35 pieces per pack.