I have used this product over the years not only for myself but for my children and their school work. I have been impressed by the strength and durability. Notebooks have a life of their own...these seem to be able to withstand alot of abuse. Speaking from the kids perspective they come in a number of sizes which is handy for multiple class notes and fun colors. The price point on this item is unbeatable in my opinion. IT is nice to be able to get all of your school and work supplies in one place.