This is a really lovely little binder. It's 99% perfect, the only thing I will say is that in the pictures it looks like it's made out of a faux leather material, and perhaps this is explained in Japanese and I couldn't read it, but the material is slightly more plastic-like with a thin foam backing. I think it is so that it can be flexible enough to bend back 360º, which is indeed convenient. The ring closure system is great, as with all the Lihit Lab products. And this size is really nice, small enough to fit anywhere but big enough so that you can write plenty. If it was a tiny bit sturdier, I would give it 5 stars.