Everything you need to write in any kind of weather. Cordura Nylon book cover that has a rugged zipper closure and holds up to 4 writing utensils. Tactical Field Book (4 5/8" x 7 1/4") with a tough Field-Flex cover with non-glare all-weather green or tan paper. Each sheet is perforated for easy removal. Universal Pattern (1/4" rules with faint 1/4" grid) for notes and scaled drawings. 160 pages (80 sheets). Includes 16 pages of tactical reference material. All-Weather Tactical Black Clicker Pen that writes on wet paper and upside down in temperatures from -30F to 250F. Flat black metal barrel.