3M MA220MB Adjustable Desk Monitor/Notebook Arm, 20 lbs, 18-1/8 x 16-7/8 x 6-3/8, Black

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Adjusts up, down, forward and backward to achieve the best ergonomic position and make the most of limited workspace. Swivels 180? and folds out of the way. Rotate monitor to portrait or landscape orientation. Mounts on surfaces up to 1-7/8 thick. A [more info]