Corrugated Cardboard Magazine FilePremium corrugated construction with glued side panels withstands heavy day-to-day usage. Organizes and stores a variety of letter size binders, projects, file folders, catalogs and periodicals. Shipped flat, easy to assemble. Label area on all sides. Woodgrain design blends with any decor. 12 files per carton. Magazine Files Type: Desktop; Material(s): Corrugated Cardboard; Width: 4".