Material: Made of premium oxford with transparent PVC inner pockets, durable and waterproof, which protect important documents from damaged water spots. .Expandable folder: with 13 pockets, 1 outside pocket and colorful labels, 35 x 28 cm, it is large enough to store various documents. Help you make classifying and finding files you need very efficient quickly. .Wide Application: Perfect for storing A4 and below A4 size paper files, it can organize bills, receipts, contracts and certificates well. Suitable for teachers, students, businessmen, etc. .Zipper design: The double zipper will keep important paper files and personal items from falling out. Practical gift for your family, friends and coworkers. .