The Fellowes Depth Adjustable Monitor Arm adjusts easily in every way for optimum viewing control. Easy to mount clamp attaches to desktop or through grommet hole. Elevates LCD monitors from 3- to 16- " above the desk. Minimum reach of 2 " to a maximum reach of 21- ". Tilts up or down /- 37 and freely swings left or right (360 rotation capability). Mounts to surfaces up to 2 "thick; no tools required. Meets VESA mounting standards. Holds LCD monitor up to 20 lbs.