Hardy hardcover notebooks have been designed with thoughtful choices & attention to detail. The unique index corners allow you to easily locate your notes. The expanding pocket stores odds & endsa handy place to keep pens & highlighters on the go. Wirebound notebooks with a double-wire binding allow pages to stay flat for easier note taking. Pocket-Sized Indicator: Y; Book-Binding Type: Wire-O; Book-Binding Details: Twin-Wire: Hard Cover; Book-Binding Edge: Side.