Durable and stylish hard covers, gray spines and metallic accents. Quality double-wirebound books designed for durability and ease of use. Folds back or lays flat for easy writing. Contents Index Page and Useful Numbers for easy referencing. Labeling Box on each page to organize projects—by date, page number or project name. Heavyweight white paper. Perforated sheets. Pocket-Sized Indicator: Y; Book-Binding Type: Wire-O; Book-Binding Details: Twin-Wire; Book-Binding Edge: Side.