Stable Material Waterproof - Our accordion sorter made of high quality polypropylene (PP) plastic material (non-toxic and non-radioactive), not easy to break and deform.It is very stable and waterproof. easy to carry documents when you go outExpandable Large Capacity - 24-color expandable individual pockets for reliable partitioning of A4-size paper that holds approximately 3,000 sheets. Each pocket offers a considerable amount of space, up to 10 inches. Its expandable bottom adds capacitySecure Flap Drawstring Closure - The flexible flap and drawstring closure of the backrest provide added security. To access stored items, simply fold down the flap, When finished, return the flap to the top of the backrest and secure it in place using the drawstring closureUnique Design - Accordion binder is more advanced than other traditional briefcases. Our rainbow file organizer is made up of 24 individual pockets with lid and enough long and elastic drawstring for safer storage. In addition to the humanized pen holder design, never worry about losing papers or pens, 2 transparent business card slots displayed on the cover pageMulti-use Saving - Pockets feature a pull tab to allow for the addition of handwritten labels, allowing each section to be identified instantly for quick access. Keep your holiday documents, vouchers, cards and coupons, etc. tidy and organized, an ideal document organizer for home, office, school and on the go, simple and fashionProduct size: 23.5*33cm, can be pulled to 68cmQuantity delivered: 1 pieceColor: colorful