The plastic envelopes are made of polypropylene plastic and come in 6 different colors, 2 of each color. The plastic pockets are waterproof, tear-resistant, and durable, and can protect documents and office products well from damage. LARGE CAPACITY: The binder pocket has an expandable design that allows the sides of the pocket to expand to 2 cm high, and the binder can easily hold at least 200 sheets of A4 paper, or even more. Multi-hole design: Binder pocket with multi-holes for use with most standard 2/3/4/11-ring binders. Fits most lever arch and ring binders. The A4 plastic pocket is also open at the top for quick and easy access to documents. PRACTICAL DESIGN: Transparent plastic material allows viewing of contents without opening, each folder has a label pocket, multiple colors and labels to categorize and identify your documents. Snap closure keeps contents secure. MULTIPLE USES: The binder is suitable for daily use, keeping documents organized and easy to carry for storing documents, can be used in school, home, office, paperwork, and business trips. Size: approx. 32 x 23.5 cm Material: plastic Color: As shown Package contents: 12 x binder pockets 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 allowed measurement error is +/- 1-3 cm.