Nice size. This will make will not make sure that the paper will not be not be sticking out at either end. The rings are large enough so that the paper will be laying flat. The binders are not heavy so carrying will not be a problem.
I like the extra folder that is included inside and that you can make a note on both the back of the book and also a sleeve on the top of the notebook in order to identify what you are storing inside the notebook.
I chose this particular binder for the fact that it was yellow. This is the binder in which I will be keeping all the articles that I have cut and pasted out of the newspaper or printed on my computer with the topic of: COVID Binder. I figured yellow was the appropriate color for the pandemic thinking of other famous diseases - yellow fever jaundice etc. The added attractions were the pockets in which to store related info.