Loctek Full Motion Gas Spring Arm Desk Mount Stand Fits 10-24" Asus Acer AOC LCD Computer Monitor (D5) 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 Extended length of the arm is up to 20'' and the adjust height is up to 15.7". Easy to install, Sets up in minutes, clamps directly to desk. It can work both clamp and grommet. The mount can clamped to desk within 0.79''-3.94''(20mm-100mm) thickness or grommet to the desk with the size of the hole:0.33''-2.75''(8.5mm-70mm).