Fit for Your Monitors - Ensure Compatibility Before Purchase Your monitor must meet all three conditions to be compatible with our monitor arm: 1. Size: Each monitor arm supports screens up to 32 inches maximum. Monitors exceeding this size are not compatible. 2. VESA Mounting: Your monitor must have VESA mounting holes of either 75x75mm or 100x100mm. If your monitor lacks these mounting holes, this stand will not be compatible. 3. Weight: The monitor must weigh between 4.4 lbs and 19.8 lbs to ensure secure and stable support.(To avoid compatibility issues, we strongly recommend verifying these details before making your purchase.)Additional Height Design - HUANUO dual monitor mount features an additional 17-inch column, which allows the maximum height to be raised up to 25.19" after lifting the monitor (VESA center to desktop). This extra design greatly benefits individuals who prefer a higher viewing angle or have a taller stature, providing them with more height adjustment options to alleviate discomfort during long hours of work.Customize Your Screen Angle - This full motion dual monitor arm allows your monitor 90度tilt, 180度swivel and 360度rotate to find an optimal view angle to meet your demands.Maximize Your Desktop - Hold your monitor on the arm of your desktop, save up valuable space on your desk and make your workstation spacious; the integrated cable management keeps your cables neat and ordered.Simple to Assemble - It offers two mounting options: a clamp mount and a grommet mount for desks with a hole. For the installation desktop, We only recommend solid wood and metal desktops and do not recommend glass desktops, and the desk thickness of 0.39" to 3.54", any desktops outside of this thickness range are not compatible. It comes with clear visual instructions for assembly to help you install. Please tighten all screws when installing and follow every step in the manual.