STABLE & WATERPROOF MATERIAL - Our accordion folder made from high quality polypropylene (PP) plastic material (nontoxic and nonradioactive), Not easy to break and deformation. It's very stable and 100% waterproof. Also come with 3 more waterproof A4 zip lock bags, easy to carry some documents when going out . EXPANDABLE & LARGE CAPACITY - Expandable 24 colors individual pockets for reliable partitioning for A4 size paper, which can hold approximately 3000 sheets, Each pocket offers a generous amount of space, expanding to 10 inches. Its expandable bottom adds additional capacity . SECURE FLAP & CORD CLOSURE - The folders full-size flexible flap and cord closure provide added security. To access stored items, simply fold back the flap. When finished, return the flap up and over the top of the folder and secure it in place using the cord closure . UNIQUE DESIGN - Expanding file organizer is advanced than other traditional briefcase.Our rainbow file organizer is 24 individual pockets with cover, and enough long cord flexible elastic closer for safer storage, besides humanized pen holder design, never worry about papers or pens lost, 2 transparent name card slots displayed on the front page . MULTI-USE & TIME SAVING - The pockets are tabbed to allow for adding handwritten labels, ensuring each section can be instantly identified for quick access. Keeping your holiday documents, vouchers, cards and coupons etc tidy and organised, perfect document organizer for home, office, school use and travel, simple and fashion .