Unfortunately due to the cold it was all uneven and would not come out of it. We had to return but Staples is great on their return policy and we were able to buy another one that is perfect.
With an office chair of normal weight and a fairly low-pile carpet this mat does not work for me. The chair casters sink into temporary indentations anytime the chair stays in one place for awhile making it very difficult to move the chair out of these "ruts" for lack of a better term. I doubt I will tolerate trying to use it for very long.
We needed to replace a chair mat that is being used on a low-pile carpet in our home office. This chair mat has the "carpet teeth" on the underneath side to secure it to the carpet so it does not move when the desk chair glides over the mat. It was originally reasonably priced but when I went on-line to make the purchase for pick up at a local store there was a coupon offer for a 20% discount! Since it was not a shipable item it was ready for pick up at a local store within just a few hours of ordering.
Great price on this chair mat but it is too thin and did not hold up to normal use in a home setting. Cracked in several places now and will be replaced soon with a heavier version.