Thickened Cardboard: Made of premium cardboard, a kind of 100% renewable and recycled material, it is not easy to be damaged by sharp object or soaked in water, durable to use. Product size: File magazine holder 3.5*10*10.5 inch, suitable for A4 size and letter size, PRODUCT SIZE: 17.5*10*10, 5 inches. Package Included: 5 * File Folder Frame. You can get a pen holder of the same material for free. With Front White Tab: The magazine file is great for labeling and dividing your file, magazine, paper periodical, cosmetic or other office document. It will become your meticulous document manager. Multi-purpose: Computing can be used as a magazine file holder, storage box paper files, document divider, household storage, magazine and newspaper rack, spractical and functional. Has many uses: Magazine organizer Foldable and flexible, magazine rack cardboard is very easy Assemble or ship, racks assemble or ship, sturdy and space saving, great for school dorms, offices and home file storage.