Even though this is simply a journal wrapped in cardboard it seems to be almost indestructible. I put it in my pocket fully expecting these to fall apart or get bent/folded in a few days. However, to my surprise, they hold up just fine, almost no wear on the covers after wearing them in my pocket for a month. The paper is actually relatively thick and it's about the size of a US passport. I take quick notes on these and it's easier to handle than my phone. They're really convenient and I never leave home without it.