Keeps documents in an easy to read， upright position. Holds up to 150 sheets. Designed to mount to a full-size CRT Monitor. Height adjustable clip raises to accommodate legal documents and lowers to hold documents in landscape orientation. Mounts with 3M Command Adhesive strips for easy and clean removal， with no sticky residue. Model no.: DH340MB Size: 3.375 inches x 12.0 inches x 1.75 in. Color: Black. Also try 3M Gel Wrist Rests.