[ CAPACITY EXPANDABLE DESIGN]Upgraded 3D design on the side, which can be extended to 0.8inch/2cm. A4 size plastic punched pocket envelope portfolio, easily holds up to 300 sheets of A4 paper at a time. In addition, the upgraded popper wallet button is not easy to fall off, preventing files from slipping out accidentally, which is safe and reliable.[PRE-PERFORATED DESIGN & ]Reinforced 11-hole punched folders fit most 2/3/4 ring binders and lever arch files. Made of high quality PP material, waterproof and tear resistant. Upgraded single layer thickness to 0.4mm, thicker than the average of the same products in the market, sturdy and durable, well protect your from damage for a long time. Nice appearance, you will love it.[TRANSPARENT PLASTIC WALLETS] 12 pack A4 plastic wallets with buttons in 6 assorted colors, 2 pieces per color. Multiple colors allow you to categorize and manage content more efficiently to avoid clutter. The transparent plastic folder allows you to easily view the contents without opening it, which greatly improves work efficiency. The colored envelopes embellish your .[DURABLE SNAP BUTTON DESIGN]High quality colorful file wallets with snap button closure, which ensures your files safe, more convenient and quick to open and close the file bags. Plastic envelopes have a pocket for labels to easily distinguish documents. Unique label pocket design suitable for tracking different topics for easy sorting and searching.[MULTIPLE USE] A4 briefcases are very suitable for daily use, lightweight and easy to carry. A great document organizer for school, work, home and business trips. Can be used to store documents, receipts, textbooks, stationery, passports, business cards, puzzles, small assembled toys, etc. Keep your items organized and help you sort out the clutter.size:31x24.5cm Material:Ppcolour:As ShownPackage Contents:12 x File FolderOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.