Keeps documents between monitor and keyboard to help reduce head neck and eye movement Transparent back plate supports wide and heavy documents Skid-free base Angle and height adjustable Can stand alone on desktop or hang over edge Elastic line-guide enables easy data entry and helps keep documents in place 18 Wide Backplate-300-sheet capacity Holds- A4 Books Catalogs Legal Letter Mounting Details- Free Standing Material(s)- Plastic Sheet Capacity- 300