Height Adjustable Pole Mount Monitor Arm for 17"-27" Screens with Mechanical Spring, VESA 75x75 and 100x100 - Holds up to 15.4 lbs

I'm using this with a 24in monitor. It works well if you keep the monitor close to the post to which it is mounted. When the monitor is further away from the post, the plastic mount bends which causes undesirable alignment issues, such as the monitor slowly floating away from the desired position.If I knew this ahead of time I would have bought one with all metal construction. Otherwise this arm is a good value for very light duty.