FLEXIMOUNTS Full Motion Gas Spring Arm Monitor Wall Mount Fits 10-24" Asus Acer AOC LCD Computer (M09) Make sure that the VESA holes measure 100 x 100mm or 75 x 75mm and the weight of the monitor is within 3.3-11 lbs. Tilt angle:-15 degree- 15 degree. Swivel angle:180 degree The horizontally Extended length of the arm is up to 22.4'' and the vertically adjust height range is -2.6" to +9.2". Easy to install. Sets up in minutes. The length of the first arm is 8.5''(215mm) and the other arm is 13.9''(353mm).