HIGH QUALITY: Using high quality PP material, the thickness of poly envelope is 20c, hard to fade, quite protective; Washable, reusable and durable, not easy to break, solid edge EASY TO VIEW FILE CONTENTS: Stylish clear colored document folder keeps contents visible and makes it easy to find documents without opening the envelopes. SIZE: Length is 33.5cm/13.2inch, width is 23.5cm/9.3inch. The size of plastic folders is slightly larger than A4. That means you can put more documents inside and make it much easier to put documents in and out of the wallet. CONVENIENCE AND SECURITY: Exquisite button design. Documents are not easy to slide out and not easy to lose, can help protect your items from light spills and other moisture. Package includes: 12 colorful transparent envelopes with snap button, easy to carry, the envelope bags can be used at school, home, work, office travel and business trips.