Post-it Index strong flags are repositionable tabs used for marking, highlighting and indexing important information that you need to refer to again and again. You can also write on them too, which means you can customise your index to find the right page or section really fast. With a range of bright, attractive colours to choose from, Post-it Index flags are perfect for using on folders, files, books, magazines or catalogues where you require quick and easy reference. Convenience at your finger tips.