Any time you have a chair that rolls on carpet numerous times you need this type of mat. Not only does it make the chair easier to move but it save your carpet from excessive wear.
It is not rigid. It gets indentations where the chair castors are and over time they get worse because the chair castors will tend to end up in those indentations repeatedly. I will be returning this item if I can find a better one. I never had this problem with my old chair pad which came from Staples.
Staples® 46" x 60'' Rectangle Chair Mat for Flat Pile Carpet
on March 10, 2021
Posted by: D.N.
Verified Purchase:Yes
This mat is smooth large and clings perfectly to the low pile commercial-grade carpet in my office. It is clear not cloudy or opaque. The carpet shows through very well. Staples delivered the large mat to my office and the delivery person even helped to remove the old crumbling mat.
It fir well under the knee-well. It seemed to protect tghe carpet. It was a see-thru panel. However it seemed to be too light duty for the servic. That ios to say the indentations under the chair's wheels were very noticable. We think the plastic will not lasat long.