Features:1. Material: The folder is made of high-quality PP material. Durable, waterproof, environmentally friendly, and will not crack or deform after long-term use. 2. Storage function: This product has a storage function, with a total of 13 layers. You can store your children's materials and test papers so that children can quickly find the materials or test papers they want.3. Excellent design: The accordion design of the folder can be easily retractable. Portable round hole hand-held design, easy to hold and stretch, feel comfortable, stylish and durable. 4. Large capacity: There are 13 independent pockets in the extended file storage bag, which can hold about 2000 sheets of A4s paper. Keep your business documents, vouchers, documents, student documents, cards, receipts and coupons neat and orderly. Save a lot of space for your home, office and school.5. Wide range of application: The product has a wide range of applications and can be used in offices, bedrooms and other places.Notice:1.Actual color may be slightly different from the image due to different monitor and light effect2.Please allow 1-3cm deviation due to manual measurementParameters: Outer board: 1.Omm, Inner page: 0.16mm Size: 255*323*20mm Material: PP