Viozon Height Adjustable Single Arm Computer Monitor Mount Stand for One Computer Monitor from 13" to 27" With VESA 75 and 100mm (Single Arm x 1) Applicable to Samsung, Acer, Viewsonic, LG, Dell, HP, Asus, AOC, eMachines flat panel LCD and LED displays from 13" to 27" (13, 15, 17, 19, 20, 22, 23, 24 and 27 inch monitors) The height is adjustable to make it easy to find the comfort position when used.Height adjustable range: 108mm~350mm All the connectors in this holder could rotate 360 degree with adjustable damping make sure it rotate freely, monitor could swivial +-90 degree vertically. Elevation angle could be adjusted 90 degree and depression angle could be adjusted 80 degree, no matter you how you stand or sit, you could make the monitor parallel with the angle of viewing. Please check VESA (mounting hole pattern behind your Monitor) before installing the monitor onto the stand. the holder is only of the monitors with the VESA of 75x75mm, 100x100mm