Compatibility: To ensure compatibility with the dual monitor mount, your each monitor must meet three conditions at the same time: First, computer screens size range: 13 to 32 inches. Second, screen weight range: 4.4 to 19.8 lbs. Third, the back of the monitor screen must have VESA mounting holes with a pitch of 75x75mm or 100x100mm.Regarding the compatibility with desks, your desk must meet three conditions at the same time: First, desk material: Only wooden desks are recommended, plastic or glass desks cannot be used. Second, desk thickness range: 0.59" - 3.54". Third, the bottom of the desk should not have any cross beams or panels, as this will interfere with installation. We recommend carefully checking that your desk and monitors meets all above conditions before purchasing.Hold Your Monitor in Place - HNDS6 features a unique structural design that offers a more reasonable product structure compared to other hinge brackets, significantly improving stability. It also provides two desktop installation methods: C-clamp or grommet base. Both options ensure stable and secure fixation for your monitor. At HUANUO, we have always been focused on improving the strength and stability of desktop dual monitor mounts.Optimize Your View and a Wide Range of Motion - No more bother rotating the angle by adjusting the screw! The excellent design desk arm makes it adjust with such smooth action. The monitor stand allows your monitor to swivel, tilt and rotate. Go and freely set your monitors to customized angle and position.Comfort Is Fundamental - Our dual monitor arm for desk raises monitors to eye level, improving posture, relieving strain on neck & shoulders while increasing productivity levels.Height adjustable, full motion design lets you work in a more comfortable ergonomic position.