The 3" x 5" top spiral notebook is small enough to fit comfortably in your pocket and tough enough to survive any of Mother nature's onslaughts. This pocket notepad will survive rain, sweat, mud, snow, oil, and grease. Impact resistant Wire-O binding won't lose its shape when tossed around in packs or put in a back pocket. The polydura cover defends your field notes from scratches and stains. Each notepad has a standard and metric ruler on the back cover. Recycle Rite in the Rain paper with standard papers or the entire notebook using most curbside programs. Separate the Wire-O binding for easier processing.