HUANUO Dual Monitor Stand - For Two 13 to 40 inch Screens Monitor Desk Mount Double Gas Spring Arm, Height Long Adjustable VESA Mount with Clamp, Grommet Base, Each Arm Hold up to 26.4LBS Super Long and Tall Arm - Coming with lengthened and heightened gas spring arm to extend 21.6 inches to the front and especially fit for biger and deeper desks, It can be easily raised up to 20.5"，raises monitors to most comfortable eye level. Full Motion Adjustments Optimize Your View- This dual monitor mount stand allows your screens to swivel from -90° to +90°, tilt from -45° - +85° and rotate 360°. Conveniently set your monitors at an optimal angle to increase productivity and comfort.Perfect for office workers and gaming players. 2 Mounting Options : This dual monitor mount for desk comes with a C-clamp and grommet mounting base. You can attach the computer stand and hold your two monitors with the C-clamp (Max desk thickness 3.5"). If there is a hole (Diameter of the hole max 20mm) in your desk, you can choose to mount the grommet (Max desk thickness 3.5"). USB Support & Cable Management : This dual arm monitor stand built-in USB port provides an easy way to charge your USB devices. It provides cable management, cable slot will help you hide and keep your desktop clean.