By Bestbuy.com

3M - 360 Degree Rotation +45 Degree/-45 Degree Tilt 90 Degree Pan Dual Monitor Mount For 27 in. Monitors Supports 20 lbs - Black

Free up valuable desk space and bring your monitor to a comfortable viewing height and distance while sitting or standing. Sturdy steel construction holds two monitors up to 28.5 in. width and 20 lbs. each. Easily clamp mounts to surfaces up to 3.25 in. thick, no tools needed (grommet mount also available). Cord management clips on the arms and pole. Fully adjustable as you can set height on 15 in. pole rotation (portrait to landscape), 360 degrees tilt (forward/back) from +45 degrees to -45 degrees, pan (left/right) from +90 degrees to -90 degrees and arm swivel with clamp mount (front to back) to 90 degrees.