If you require a document holder to keep documents open, upright and easy to access, the DH640 Inline 3M Document Holder is an ideal choice. Small enough to keep on your desk, this holder features adjustable angles and heights, allowing it to be precisely positioned to meet your needs and prevent unnecessary strain on your neck and shoulder muscles. It also has a handy elastic guide to hold your book open, enabling you to simultaneously read information and complete work on your computer at the same time.