Plastic File Wallet Envelope: Size as 14.8x 11.5 and 0.3 thick,2.8" expansion (Bigger than A4 paper size & suitable for B4 paper size), which suitable for both A4 and B4 sizes. Premium Material:Made of high quality plastic material , the file holder is not easy to break and deform.with waterproof characteristics,can effectively protect office documents or school supplies from being soaked and soiled. Advantages:Cloth edging design:Cloth over-lock and metal reinforced buckle at both the corners and bottom edge; Snap Button & Business card bag design:The snap button closure ensures your files safe and the card slot can keep your memo card;Transparent Visualization Box:you can also see what's inside through the transparent shell,which can effectively classify products and find files at a glance. Widely Usage:Perfect for school like important files,books, subjects, stationery etc; For office like documents,business cards, tax receipts etc; For home like certificates,coupons,,insurance policies,health care papers,information document,even ipad,cosmetic etc; Can be used as office storage supplies, storage travelling items, it can also hold small makeup items or stationary, for students, teachers, office workers,home. Portable & Gift:You can easy to put the plastic folders in your hand or in backpack for carrying, or storage file folder in the drawer or filing cabinet.It is suitable for carrying things out in traveling, short-distance outings or business trips etc;Very convenient and stylish,it is an ideal gift for yourself, teachers, students, family, children, friends.