Made of PP plastic. This professional polyethylene envelope has been , waterproof, and compatible with a long time to provide long-term protection compatible with your files. The size is 32cm x 23cm, which is slightly larger than A4. Our plastic folder provides sufficient space, which can easily store multiple files and sort it easily. The design of the buckle is used. These plastic envelopes are easy to open and close, and you can seal your file safely without additional packaging or bundling. Suitable compatible with home, office or travel. Our plastic bags can help you maintain orderly, tidy, and very suitable compatible with storing documents or personal items. Not only can it be used compatible with file storage of various scenarios, but also helps to organize personal items, and the transparent is easy to identify. Colour:D:White Material:Plastic Package Contents: 1set * plastic envelope folders(12PCS) Only the above package content, other products are not included. Note: Light reflection 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.