Allows the user to maintain a correct posture when reading by reducing the angle between the work surface and the vertical posture. Uses include reading, writing and drafting - even a portable lecturn.· Low sheen non-reflective surface· Sturdy design with non-slip base· Easy angle adjustment from 2-39 degrees· Removable ledge for writing or drawing· Holds anything from single sheet of paper to heaviest reference books or files· Self locking carry handle for portability (mini, small & medium sizes only)