Material: plastic colour: mixed color Package Contents: 12 x Plastic Envelopes(6 Colors) 3 x Binder Rings Only 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. The polyethylene envelope is made of high quality waterproof and dustproof PP material, which can protect your documents from water, moisture and dust. Binder folders are flexible and durable to keep your important files . Thickened and Expandable Binder Pocket: plastic envelopes can to 200+ A4 documents. The binder is 0.4mm thick and unfolds 2cm to accommodate thick books and documents. SNAP BUTTON CLOSURE It is no necessary to wrap the rope repeatedly, and it is more convenient and time-saving to open and the envelop folders. Binder Bag Packaging: 12 Plastic Envelopes, 6 Colors + 3 Free Binder Rings with Snaps, Label Card Slots and Writing Labels. The plastic envelopes not only can be used to bills, documents, materials also be used for storing stationery, travel materials, etc.