Premium Material: Crafted from environmentally friendly paper material, our file folder is acid-free, PVC-free, and archival quality, ensuring your documents are well-protected and . Expanding file folder organizer with waterproof cover, easy clean from dust, which can well protect your important documents. Expandable file folder with multiple usage to keep your other documents like receipts, coupons, paper works etc. And due to it's suitable size, it's very convenient for traveling. Colour:Blue Material:Paper Package Contents: 1x Accordion File Organizer Only the above package content, other products are not included. Note: Light reflection 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.