[CAPACITY EXPANDABLE DESIGN] Upgraded 3D side design, which can be expanded to 2 cm. A4 size plastic envelope with holes, easily holds up to 300 sheets of A4 paper at a time. In addition, the upgraded button closure is not easy to fall off, preventing files from accidentally slipping out, which is safe and reliable. [PRE-PUNCHED DESIGN & ] Reinforced 11-hole pockets fit most 2/3/4-ring binders and ring binders. Made of high-quality PP material, waterproof and tear-resistant. Upgraded single-layer thickness to 0.4 mm, thicker than the average of the same products on the market, sturdy and durable, protecting your files from damage for a long time. Stylish appearance, you will love it. [TRANSPARENT PLASTIC ENVELOPES] 12-pack A4 plastic envelopes with buttons in 6 different colors, 2 pcs per color. Multiple colors allow you to categorize and manage content more efficiently to avoid clutter. The transparent plastic envelope allows you to easily see the contents without opening it, greatly improving work efficiency. The colored envelopes decorate your .[DURABLE SNAP-LOCK CONSTRUCTION] High-quality colorful plastic envelopes with snap-lock, ensuring your files are safe, more convenient and faster 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 subjects for easy sorting and searching.[MULTIPLE USES] A4 portfolios are very suitable for daily use, lightweight and easy to carry. An excellent 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 things organized and help you clear up the clutter. Size: 31x24.5cm Material: Pp Color: As shown Package contents: 12 x File folder The above package content only, 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 +/- 1-3 cm.