- UNIQUE DESIGN: Our expandable file folder offers advanced features compared to traditional briefcases. The rainbow file folder includes 13 individual pockets with covers and a long cord with a flexible elastic closure, ensuring secure storage for your documents. With a thoughtfully designed pen holder, you won't have to worry about losing papers or pens. It also features two transparent business card slots on the front for easy access. - STURDY AND WATERPROOF MATERIAL: Made from high-quality polypropylene (PP), our accordion folder is non-toxic and resistant to breaking or deformation. Its durability and 100% waterproof design protect your important documents in any environment. - SECURE FLAP AND CORD CLOSURE: The full-size flexible flap and cord closure provide added security for your stored items. Simply fold the flap back to access your documents. When done, close the flap and secure it with the cord for peace of mind. - EXPANDABLE WITH LARGE CAPACITY: This folder offers expandable single pockets in 13 colors, allowing for reliable organization of A4/Letter-sized papers. The expandable base increases capacity, making it easy to store a large volume of documents. - PRACTICAL USE SCENARIOS: Ideal for students organizing class notes, professionals managing project files, or anyone needing to keep important documents in order. Its waterproof feature makes it perfect for outdoor use, while the compact size allows for easy transport in bags or briefcases. This file folder is the perfect solution for anyone looking for a reliable, organized, and stylish way to store and transport essential documents.