Loctek Monitor Arm Swivel LCD Arm Gas Spring VESA Monitor Mount Height Adjustable Desk Mounts for 10"-27" Computer Monitor Arm easily adjusts to support an ergonomically correct workstation; sit more comfortably at your desk while reducing neck, eye and back strain, extend or retract monitor arm; rotate monitor to landscape or portrait mode Choose the right mount: our D7A supports 4.4-19.8 lb monitors that are between 10-27; make sure your monitors VESA holes measure 100x100mm or 75x75mm Gas spring hovering system gracefully adjusts monitor height. Front-loading ports for audio, mic & USB 3.0. Aircraft-grade aluminum arm features a stylish anti-scratch surfacees Durable hardware supports clamp or grommet hole installation. For more details please see our youtube video: https://www.youtube.com/watch?v=uOTh0-dukHs