Best notebook I have ever used.
It's really small and light, so even stacking 5+ notebooks is not too thick.
Opens and closes easily, securely, making switching/replacing paper very easy.

These work great for having a notebook for every class and keeping everything organized.

amazing you can actually fit around 1-100 sheets

This is my second one of these. Love these little notebooks. The B5 size is slightly smaller than letter size and convenient for making lists or planning. These notebooks are on the delicate side - plastic comb binder and all. I do not rough mine up and the price is right for getting several for color coding.

Bought every color, very cute, love that it's see through. Am able to put all the class subjects I have in one day together (3) to bring down the weight in my bag, instead of keeping 6 notebooks like I normally would do. You can reorder the pages and remove/add pages which is super convenient. The only downside is that it doesn't come with much papers so you have to buy a refill but I don't mind. In my opinion, the notebook feels/looks better when you add more paper in it.

Love the B5 size for studying for my certification class/exam. I have a binder with tabs and now this notebook. I carry the notebook around to take notes while studying and then take those pages out and organize them in the binder. It's a lot easier to carry this thin notebook around with my two books (each are 3 in thick!) rather than my big binder. I'm glad this holds much more than the description says. I'm still getting used to the ring system, but I don't see it as an issue. My notes are so organized now...if you haven't tried anything like this, give it a shot. Worth every penny IMO.