Chart dividers are designed for maximum organization within a file folder. They provide quick and easy referencing for access to pertinent information in an efficient manner and are a great time saved. Our individual chart dividers are 1/6-Cut, which means that 6 tabs can be visible at one time. This letter-size index divider has an "X-Ray" tab in position 4. The tab has a gray mylar. The material used for the entire chart divider is made from 125# manila stock. Packaged 100 dividers per box.