Earth-friendly index system sets are easy to use and made with a high percentage of recycled material. Create custom index in minutes, no tab typing or inserting necessary. Customize numbered index sets by printing onto the Table of Content sheets. Matching, preprinted tabs on three-hole punched divider sheets can be used in either vertical or landscape formats. Easy-to-use, free templates in your favorite software are available online. Numbered tabs and ring edges are reinforced to withstand heavy use. Three-hole punched indexes are compatible with laser or inkjet printers, as well as standard typewriters.