This Kokuyo campus notebook has been developed and adopted as a paper that is easy to erase with an eraser, so you can write fine characters with many strokes more clearly and smoothly. (Compared to the old products of Kokuyo) Excellent original paper standards from Kokuyo, make sure you have a comfortable and satisfying writing experience, and it has adopted a white paper that reduces eye fatigue when writing. It's original paper is resistant to bleeding and made with acid-free paper that is suitable for long-term storage. Uses a "wireless binding" that solidifies your back with glue instead of thread, so it can be opened flat and not easy to fall apart. This makes every page easy to write and read. The spine cloth is made with a special film laminated to the surface of the paper so it is resistant to tearing, abrasion. And you can easily write a title on the spine cloth with a ball pen, which is very convenient when you take out the desired notebook on the shelf. This product is environment-friendly which has forest certified inner paper.