... material, Convenient, best for usage. Display book, clear book,10 to 30 pockets, file holder,office stationery 1.New/High quality PP ... important files' safekeeping.3.Inner leaf is not easy to adhibit together,preventing static and reflex.4.Different thickness,size ... are welcome! To get more details and any quotations,please feel free to contact me. Beeline Cover Display book 10 to 30 pockets