Vertical height range of 28¼”. Reach of 23¼” Five axes of rotation provide tilt range of 145º ( /- 72.5º). Dual extension arms each rotate 360º for maximum reach. Quickly adjusts from Portrait to Landscape orientation. Provides easy adjustment regardless of monitor weight and position. Collapsed depth of 4″ For customized control, including touch screen use, tension is adjustable at all pivot points. VESA compliant—supports both 75 and 100 mm mounting brackets. Supports monitors up to 25 lbs. Position anywhere with your choice of desk mounted with C-clamp or grommet mount. High quality pneumatic strut cylinder backed by a 10 year warranty. For security, monitors are attached with 4 screws.