For decades, Rite in the Rain products have been the choice of birders, hunters, anglers an outdoor professionsals who often have to take notes in wet weather. Each notebook contains pages made of an innovative waterproof paper that remains strong and easy to write on, even in a downpour. Rugged polydura covers repel moisture. In addition, the pens are filled with waterproof ink that will not run or smudge. pages include sections for writing observations and notes dedicated to your specialized interest. 50 sheets. Dimensions: 4" x 6".