Binder Bag Packaging: 48 Plastic Envelopes, 6 Colors + 12 Free Binder Rings with Snaps, Label Card Slots and Writing Labels. Thickened and Expandable Binder Pocket: Our plastic envelopes can hold up to 200+ A4 documents. The binder is 0.4mm thick and unfolds 2cm to easily accommodate thick books and documents. 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 longer. SNAP BUTTON CLOSURE DESIGN It is no longer necessary to wrap the rope repeatedly, and it is more convenient and time-saving to open and close the poly envelop folders. The plastic envelopes not only can be used to store bills, documents, materials but also be used for storing stationery, travel materials, etc. Material: plastic colour: mixed color Package Contents: 48 x Plastic Envelopes(6 Colors) 12 x Binder Rings