The 3M In-Line Document Holder keeps documents between the monitor and keyboard to help reduce head, neck and eye movement. The design of the 3M Document Holder offers a versatile angle and height adjustment for easy viewing. The 18" wide, transparent back-plate on the in-line desktop document holder supports wide and heavy documents. With an elastic line-guide, the 3M In-Line Document Holder enables easy data entry. You can keep up to 300 sheets in place with the 3M Document Holder. This practical 3M In-Line Document Holder includes a skid-free base and is made of 40 percent pre-consumer recycled material. 3M DH640 In-Line Book/Document Holder: * Line-guide * 18 inch wide back-plate * Clips up to 300 sheets * Skid free base *