I bought these for the book at my workplace where we track reservations and van runs because the older ones we had were just getting too old to stay in the book. They were basic plastic sheets with holes in them and were of average construction.I pretty much bought this I'll admit to fill out an order to get the Super Saver Shipping, but I'm glad I did. These are made of nice thick plastic which holds up very well, and the pockets are roomy enough to fit in printed maps and other items into the dividers. Avery was also nice enough to include a perforated template sheet of paper where you can put in each divider name into a Microsoft Word template, print it out and have cleanly-typed names rather than having to struggle to write a tiny label.Very good product and stands up to abuse, definitely buy this if you're looking for a good tab divider for a notebook or any other kind of project.