Presentation Book Binder: Folder size is 9.4 x 11.4 inches. Each with 12 x 8.5 x 11" plastic sleeves can display 30/60 pages sheets (letter size) or smaller. Folder with Plastic Sleeves: These clear sheet protectors are made from quality polypropylene,no-copy transfer, no ink lift-off, and nonstick to other pockets, transparent and waterproof. Binder with Clear Sleeves: Each sheet protector provides a wider top opening, so your pages are easy to slip in and slip out. And with a strong connection, these page protectors will not fall apart. Customizable Portfolio Folder: This clear sleeves binder with reversible spine insert and front cover insert, you can put in your spine page and front cover page, define your own file book. Multi-functional Usages Presentation Book: Good helper for work and home, use as a documents binder, sheet music binder, artwork binder, certificates binder, contracts binder, etc.