Wrap around any file folder label, folder tab or folder edge to prevent wear and tear of your heavily used files. An ideal solution for extending the life of file folders, they prevent cracking and lost labels while reinforcing tab and spine edges. Protectors can also be used "flat" to attach miscellaneous materials to any surface. Strip. File Folder Strip Type: Reinforcement; Repair; Size: 2 x 11; Material(s): Polypropylene; Color(s): Clear.