Archival Methods Hanging File Folders, Letter Size, Package of 5.

· Archival Hanging file folders are made of certified and tested 11-point cream color card stock. The material is certified to meet long-term archival storage requirements and specifications. Card stock is acid- and lignin-free. Folders feature metal rods with a baked enamel white finish. Fifth-cut slots for plastic tabs (not included). Hanging folders are available in letter- and legal-size; open sides or gusseted pocket which will prevent media from falling out.
· Take a look at commercial grade and general purpose file folders and see what kind of board stock they are made of. In truth, you usually can't tell. Some aremade from recycled material. Great as public policy but a big question mark for archival storage. If the documents need to be permanently filed and retained they require archival quality file folders.