The reason I am giving a 1 star is because the product does not work with thick pad or carpet. After 1 hour of use I had indents in the mat. This wouldn't allow the chair to roll. So I will be taking this mat back and finding something different. They will probably be great with thinner and stiffer carpet.
This is a good floor mat. My old one (also from Staples 10 or so years ago) finally fell apart and I have the same hopes that this one will last for a long time.
Was not looking for and expensive mat but didn't want a cheap one that would fall apart quickly either. This one works well for a lower price point with good quality.
Chair Mat seems ‘one size’ smaller than I measured out at my desk. I’m 275 lbs and the wheels on chair do sink into the mat after working at desk for a few hours so need to stand in order to reposition chair. I am skeptical if the mat will prevent wear and tear on the carpet. This mat is thin plastic but durable. Hard rubber thicker ‘gym’ mat may be better for me. Price makes purchase worth a try.
Beware when ordering this. I have black tar on the bottom of it that I am afraid will get on my carpet so I had to put a piece of cardboard over it. Also it comes in a heap that you can't get straighten out. I have a big ripple right in the middle of it. Very disappointed in Staples that they don't roll the carpet mat up so this don't happen. This is a quite expensive item to be delivered in that condition.
This mat was to replace an older similar mat that had cracked with age. The new mat does not lie flat it wants to "walk" (move) on the carpet with every roll of the desk chair. The current carpet (rug) is thicker than the previous one so that may be part of the problem.