Rite in the Rain 4in x 6in Top Spiral Notebooks - Refer back to your notes even on the roughest job site with a notebook that survives rain, sweat, grease or anything else the job site digs up. Impact-resistant Wire-O doesn't get bent out of shape when tossed around in packs or your pocket. The Polydura cover creates a tough but flexible outer shell defending your notes from scratches and stains. Rulers, conversion charts, and map scales printed on the cover prove handy in the field. Features Wire-O binding Polydura cover Rulers & reference