This Ca-Mei expanding file bag is features polyester materials, comes with solid black color and handle. The classical beautiful color makes it like really durable. Ideal for people of all ages. Versatile and multi-functional, also can be served as portfolio, file folder and paper document organizer, accessory bags, meeting your needs in the maximum extent. This amazing file case is exactly what you’ve been looking for! Premium material— Made of environmentally friendly perfect polyester material, anti-corrosion, anti-tear, wear-resistant(nontoxic and nonradioactive), Not easy to break and deformation. Large capacity— Sized 340*270*35 mm, rectangle shape. Expanding bottom style design that allows this folder to hold 400 sheets A4/ letter size paper,an extra pocket on the outside keeps little extras close at hand. Style design—13 pockets, along with small colored A-Z labels which helps classify and organize files easily with a stylish appearance. Zipper Closure— Keeping documents, vouchers, cards and coupons etc tidy and organised,your mail, loose sheets or sticky notes will be right where you left them Stylish design- Reinforced stitching enhances the durability of the file case. Exquisite workmanship and practical design, compact, portable, light weight yet durable. Could put it into the backpack, briefcase, bag, also can hold it on your hand. Multifunctional- The folder is suitable for commercial occasions, office documents stored, household documents stored, Job interview, school and so on. Can be used as pencil case, office storage organizer bag, document bag, file bag, coin bag, makeup bag. Convenient to store coins cash, and other accessories. It will be a perfect gift for your friends. Technological process- Prenatal test plate–Material cutting–Release of material–Stitching–Packing Quality control- Materials check&qualified- Workshop QC check- Production inspector check- Finished supervisor check- Warehouse manager check- AQL check