Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Perfect fit!

This is exactly what I needed for my Acer P221W monitor. It even allows the 90-degree rotation for this wide-screen monitor (though I probably won't use that feature much, if at all).Very easy to assemble and use - works perfectly.Highly recommended. (I just wonder why, at such a low price, the monitor wouldn't have come with something like this straight out of the box.)