Does what it says it would. I have a high-pile carpet and we already had to take everything out once because the carpet moved. Now I bought the chairmat and tucked it under the desk to make sure that the carpet doesn't move when the chair moves back and forth the carpet stays in place. Like I said it does the job it is supposed to do.
This mat is about 1/2 as thick as one I purchased from Staples about 10 years ago. That one was "High Pile" as well. I'm hoping the new one will provide similar service. We'll see!
I should have measured the mat I was replacing. And I should have questioned the density of the plastic it is made of. It turns out that it is too small AND it is so soft that my desk chair sinks in and sticks in place. Unfortunately I am just home one week after hip replacement surgery and cannot get around to take it back to the store (it was out of stock when I purchased it and I had it delivered). I need a larger thicker harder-surfaced mat.
The chair mats arrived on time and are just what we needed. We are very happy with our purchase. The sales personnel at the store was very helpful and accommodating.