The mat does not work as expected and I do not weight more than 190 lbs. The carpet was measured before I purchased and my chair sinks into the mat. Not happy.
I had the same mat for high pile carpet before and that one is much stiffer you can't possibly roll it. This one came rolled so it is softer which tends to create dips. Worst part though was the packaging tape it was secured with had totally melted on to the mat it took me an hour of goo-be-gone to remove all the residue.
The plastic mat does not do what is made to do. The mat is in the den on an area rug with a office style chair. The plastic mat slides all the time as the chair moves. Very disappointed. Does Staples have a different and better plastic mat?
It's a bit too soft -- chair makes indentations in the mat and then isn't able to move easily out of the "pits" it has formed so it's sort of "frozen" in place until I give it a big push.