This line refill size of 8.5" x 11" , 100 sheets/200 pages for 200 days, improve your productivity with this daily organizer. Loose leaf lined paper for standar 7-holes/3-holes inserts, refill paper for A4 binder, Size 5, Folio Size etc, DON'T fit 6 ring binders. Refill paper is used to high quality 100gsm pure white premium acid-free paper, so you can confidently use most pens, pencils, and markers without ghosting and bleed-through. This refill line paper for school notes, meeting notes, or any form of writing, our Ruled Sheets have subtle gray lines spaced by a quarter inch.