001 lined notebook refill for passport size TRAVELER'S Notebook.
This refill has lines printed in a 6.5mm interval, and uses original MD paper that pursues the best feeling of writing, and makes ink hard to stain and sink through the other side of the paper. It goes well with fountain pens as well.
NB: The starter kit can hold up to 2 notebook refills. Please use the "connecting rubber band" if you want to add some more.