This is the 001 refill for use with the passport size Traveler's Notebook. It contains 64 lined pages of white MD Paper.
MD paper is Travelers original paper, a high quality paper that is smooth so your pen or pencil glides across the paper. It is resistant to feathering and show through so it is great for use with fountain pens, calligraphy or markers.
Size: Passport (90mm wide x 123mm high) Contents: 64 pages with 6.5mm ruled lines Source: Travelers Company Japan