I have worked in offices for a very long time and know the difference of quality. This is a good buy.I wasn't sure it would be as the thickness is hard to guess but it works very well.
This Chair Mat is too soft. I even purchased extra large chair casters to more evenly spread the weight. It did help. There are depressions on the mat and I can't slide along it.
It's exactly what I needed so my chair could move easily on a carpeted floor. [...] It is a replacement for another chairmat that I got from Staples over 14 years ago! Very satisfied!