1. Material: Premium strong water-proof plastic material, not afraid of rain and oil damage.2. Suitable for Letter and A4 size paper.3. Quick Reference Index label, data classified storage, and colour index label paper.4. Envelope features multi-pocket for easy organization of papers and documents.5. Zipper closure ensures your papers stay in place.Specification:Sheet Size: A4Folder Size: 35cm x 27cm x 3.5cm/13.78inch x 10.63inch x 1.38inchClosure Type: ZipperColour:blackMaterial:plasticPackage Contents:1 * Expanding File FolderOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.