A4 Letter Size 13 Pockets: The expanding file folder case fits for A4 paper with 13 pockets. Large capacity to organize your files and papers in office and business travel. Good storage, keep your documents in good condition, not easy to break and deform. Material: Canvas/ oxford material, not easy to break and deformation, durable for long time use. Large capacity, can hold about 550 sheets paper. Premium and durable elastic and metal button closure, easy to open and safely secured to close. Thickened Inner Paperboard: The cloth file organizer is consolidated with 3MM cardboard. Heavy duty and deform- resistant for long term use. A4 business folder is a great partner for office lady and businessman to organize and manage all kinds of papers. Waterproof Accordion File Folder: The accordion file folder is covered by high density canvas/ oxford material, cardboard and polyester liner to give utmost protection to your documents. Wide Applications: canvas expanding files organizer can storage files, receipts, cards, coupons, certifications, etc. The high-capacity expanding file folder is ideal stationary office/ home file organization and storage.