Leuchtturm1917 Classic Medium Notebook. Sturdy hardcover with rounded corners, an expandable pocket in the cover, elastic fastener, and a ribbon page marker. The 145 x 210mm size is pocketable yet large enough for thorough note-taking. Features 251 numbered pages with a blank table of contents. 8 sheets are perforated and detachable. The thread-binding ensures the book can open flat without pages becoming loose. Acid-free paper is 'ink-proof' and takes all types of pens very well. 80 gsm. Includes labels for cover and spine for easy filing. Available with dot grid, squared, ruled, or plain pages.