This carpet protector seemed to work for for about 6 months but then developed a tear which turned in a large hole making it useless. I'm going to contact Staples about a no charge replacement under warranty.
If there was a zero star rating for this I would use it. It's a very badly made product. I used it for a week and it had several cracks and huge punctures in it. I returned it. DO NOT BUY THIS CHAIRMAT.
The thinner mats I had were fine on a non-pile carpet but they did not work on a pile carpet... they were moving side-ways or forward and backwards when I moved chairs on it.... thus tried this LOW PILE CARPET CHAIR MAT which is thicker but obviously does not work on a pile carpet either. It moves also but not as much. I will not continue buying these mats maybe will find a much thicker and heavier mat which is suited for Pile carpets....