[Function] 4 Semi-Transparent Colors: Red, Green, Blue and Yellow, Mark, Help Organize Documents, Easier to Find the Target File without Opening the Envelope. [Material ] Made of high quality polypropylene material, soft texture, waterproof, wear-resistant, durable and can be used for a long time. The gasket is reinforced and sealed and is not easy to tear. [Design] The anti-drop design of the security bag can be repeatedly tested to ensure the safety of documents. The size is 30x24 (cm), which is very suitable for daily work. < p>[Function] 11 Pre-cut Holes, Used For 2/3/4 Adhesives, Very Suitable For Daily Use: Such As School, Office Documents Etc. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.