Color Classification Design: There are 6 plastic envelopes with snap closure in the packing bag, and there are pockets inside for 2 protects the confidentiality of important documents. Different colored labels are used for identification and classification. Improved Thickness: Improved single-layer thickness, we use 0.35mm thickened materials, thicker than the same products on the market, very strong edge. The folder size is slightly larger than A4. More document sheets can be loaded and unloaded more easily. Plastic Pockets with Button: Button opening design, very convenient to organize your files, put them flat and safe. Water Resistant and Durable: These document pouches are made of good quality plastic, which is soft, water resistant, wear-resistant, foldable and durable, can last a long time and not tear easily. Wide Application: Our file envelope folders are portable to keep your items organized and help you sort out clutter, pocket folders can be used at school, home, at work, on office trips and on business trips.