This is a folder with 12 index tabs and 13 pockets, sized for A4 documents. It opens wide for easy insertion and removal, and has expandable gussets to accommodate the thickness of the documents. The dividers make it easy to sort documents. You can organize everything in one folder. It's convenient because you can divide and store documents in 13 pockets. I used several of these at school, work, and home, for example, to sort handouts by subject or to categorize them by individual. This is leftover from a bulk purchase. Please use it.