The Exacompta indices are made from 1.2mm polypropylene. They are A4 maxi in size and are pre printed 1 to 10 on 10 parts.The indices are pre punched so they can be inserted into a file or folder.They come with a printable index page for easy identification and can be used with punched pockets as the tabs can be seen due to the indices being largerNumbered 1 to 10