Personal Notebook Size - Works perfectly for Filofax Personal Organizer, 17.1x9.4cm/6.73x3.7 inches, 4-pack = 180 sheets/360 pages of lined paper, sufficient quantity for replacementStandard Loose Leaf Refills - International 6-ring lined paper, easy to take out and insert, double-sided lined clear black line paper, 8mm lined, 20 lines per pageEnvironmentally Friendly Paper - High-quality paper, no added fluorescent agent, ivory colored, helps protect your eyes, suitable for daily note-taking, easy to carryThick Paper and Smooth Feel - 100 gsm paper is thick enough for fountain pen writing, you can also use ballpoint pen, gel pen, rollerball pen, pencil, highlighter, does not bleed easily and writes smoothlyWide Application - Ideal for class notes, meeting minutes, travel diary, daily poetry collection, suitable for students, office workers, artists, engineers in school, office, life, travelAbout Shipping: All items will be shipped within 3 business days after the payment is received. In most cases, you will receive them within 8-12 days. The specific delivery time depends on circumstances.If you have any questions, please feel free to contact usDuring the shopping process, if you have any questions, please feel free to consult us, we will reply to you within 24 hours, wish you a happy shoppingThanks for your cooperation and we'll make you feel satisfied.