The Rite in the Rain Black Polydura 4 x 6 Universal Notebook holds up to the challenge. This compact notebook features impact-resistant Wire-O binding that remains in shape even after being tossed around in bags or pockets. The durable Polydura cover is a tough, flexible outer shell to protect your notes from scratches and stains. Complete with printed reference tools such as rulers, conversion charts, and map scales on the cover, this handy notebook is a must-have for fieldwork.