TWO MONITORS AT ONCE: Fits most 17''- 27'' Monitors with the load from 4.4 -19.8 lbs (2-9KG) for each monitor, VESA compliant patterns 75x75mm or 100x100mm While the whole VESA Plate of this product is 120*120mm,Pls pay special attention to the size of VESA Plate if your monitor are curved monitor, Or your VESA hole is inside a recession area. FULLY ADJUSTABLE RANGE: Your two screens will have 360° rotation, tilt angle +85° to -30°, swivel ±90° Upright up to 10"(260mm) and max extension is 21"(535mm). Both arms of the desk mount can be easily adjusted anyway you would like. ERGONOMICS: Improve your overall well being by creating most comfortable viewing angle for work or gaming- Enjoy the freedom to adjust your monitor height and angle: Your spine, neck and shoulder will be thankful F160 – is a dual arm monitor stand by North Bayou. It is made from air-craft grade aluminum alloy material, what makes this desk mount light and reliable. Thanks to its gas spring system you can easily move your displays in any direction. The two monitors also have adjustable height. These full motion two monitor arms will give you all possible viewing angles you like. Modern design of F160 will suit perfectly well anywhere you want. Use it in your office, class room or at home. This stylish and functional table mount will help you with your work twice as good, because the second monitor is a real advantage. Please pay attention: 1. It is impossible to adjust the arms of the desk mount before complete installation. NOTE: If you are not satisfied with our product, for any issues or concerns you can contact us at any time directly. Feel free to ask a return and full refund. We want to prove the best service to our customers! How to install Step 1:Choose the way you want to install Arm Desk Mount: Grommet or Clamp. Step 2:Measure your desk thickness or the diameter of the hole in your desk and install the desk mount. Step 3:Measure your monitor VESA pattern, choose the right set, screw the upper position in two holes, leave some space and hang up to the mount, tighten those two screws then the last two. Step 4:Gently push a little bit down your TV or computer monitor, adjust the arm tension by using the included wrench until your TV stays wherever you leave it. Turn the wrench clockwise or counter-clockwise.