[High-quality materials]-Notebook binder sleeves and binder bags are made of high-quality PVC materials, which are soft, waterproof and durable. Binder cover with snap buckle ensures safe closing.^ [Transparent design]-Transparent design, easy to view the homepage, you can find the notebook you need at first glance.^ [Easy operation]-Press both ends to open the ring, then add or remove the binder pocket, and finally press the ring to close. You can easily design your own loose-leaf folder.^ [Waterproof and dustproof] Prevent water from penetrating into the paper and protect the banknotes from being damaged.^ [Portable] Very suitable for outdoor carrying. The beautiful transparent design and lightweight materials are very suitable for holding and displaying in schools, offices, conferences and other places...