LARGE CAPACITY: The transparent file folder is bigger than A4 size, 31 x 24cm / 12.2'' x 9.45''; the poly envelops can be expandable for larger capacity. Approximately 800 sheets of paper can be stored. HIGH QUALITY: Assorted colors document folders are made of quality polypropylene, non-toxic and environmentally friendly, tear proof and water resistant. UNIQUE DESIGN: Snap button closure to keep documents secure; ID window is wide enough to insert a standard sized business card; the translucent surface of A4 plastic wallet keep contents visible. MULTIPLE USAGE: Perfect for daily use, such as school subjects, office files, traveling A4 files, business card and cosmetic storage, simple and fashion.