Writing with reliable materials. You jot down a few notes, but the ink bleeds through to the next pages of your notebook. This is likely because the paper isn't dense enough to prevent it. Therefore, you should rely on trustworthy office supplies like the SIGEL notebook. The SIGEL Conceptum notebook is a high-quality and practical product. Its compact A5 format is ideal for activities outside the office, such as conferences, meetings, and business trips, taking up little space in your bag. The premium chamois paper prevents ink bleed-through, dents, and tears. The pages are numbered. With indexes and bookmarks, you can find important information without wasting time. You can keep a pen in the holder for quick notes on the go. The integrated folding pocket allows you to store small items like business cards and CDs.