If the notebook is opened more than a few times the pages start to fall out. The ends of the pages are glued to the binder. The glue does not hold the pages in place. If you don't mind losing pages shortly after making your notes this notebook is for you.
As a Type 2 diabetic I need to meter my glucose levels and write down the results. This notebook is small enough to fit into my kit that also holds a glucometer lancet pen and bottle of glucose strips. This book holds 20 times the records of those flimsy books that come with the kit.