Customize Your Screen Angle - Finding the ideal viewing angle is easy with this fully adjustable dual monitor arm. Allows your monitors to tilt up and down 30 degrees and swivel left and right 90 degrees, and monitors can rotate 180 degrees into the landscape and portrait orientation independently as well. | Double Benefits - The center pole of this double monitor mount is 31", which allows you to adjust the screen to the ideal height as you need to reduce the strain on your back and neck, keeping you comfortable and productive while you stand or sit. Moreover, the vertical monitor mount can hold 2 monitors, save more space on your desktop and keep your workstation spacious and clutter-free. | Super compatibility - This vertical dual monitor mount widely fits13,19,21.5,22,23,24,27,29,32 computer screens, supports weight up to 17.6lbs per arm, compatible with VESA 75x75mm or 100x100mm backside mounting holes. | Made for Stacking Mode - This vertical monitor mount supports stacking 1 monitor on top of the other, making it easier to work with two monitors at the same time, especially for design work and data analysis, and very suitable for use at home or office! | Easy Installation - We provide labeled parts and clear instructions for quick assembly. Support for C-clamp and grommet mounting options. C clamps fit desk thicknesses up to 3.15" while grommet mounting works well with desk thicknesses up to 1.57". Meet your needs with different desks, stable and not easy to shake