These index dividers offer a vertical storage solution. Write-on tab on top of the poly dividers. Tabs gradually increase in width with each divider, making it possible to create more detailed descriptions or stagger the labels to make them easier to read. Tabs work with pencil, ballpoint pen or permanent marker. Brightly colored dividers are three-hole punched and open on two sides to reveal a storage pocket for letter-size documents. Load pages from the top or the binding edge to ensure the documents remain in place while stored inside three-ring binders. Bright color assortment includes green, orange, purple, turquoise and yellow.