Plastic envelopes are made of polypropylene plastic and come in 6 different colors, 2 of each color. Plastic file folders are waterproof, tear-proof, and , and can well protect documents and office products from damage. LARGE CAPACITY: The binder pocket features an expandable design that allows the pocket sides to expand to 0.8 inches/2cm high, and the binder can easily hold at least 200 sheets of A4 paper, or even more. Multi-Punch Spine Design: Binder pocket with multi-punch holes for use with most standard 2/3/4/11 ring binders. Fits most lever arch and ring binder folders. The A4 plastic folder is also top-opening for quick and easy access to documents. PRACTICAL DESIGN: Clear plastic material allows viewing of contents without opening, each folder has a label pocket, multiple colors and labels to categorize and identify your documents. Snaps keep contents secure. MULTIPLE USES: The binder is and suitable for daily use, keeping documents organized and easy to carry to store documents, can be used at school, home, office, paperwork and business trips. size: about 32 x 23.5cm Material: plastic colour: As Shown Package Contents: 12 x binder folders 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.