The mat is so thin and soft as opposed to firm and solid it was a waste of money. My chair sinks into it and then becomes difficult to roll. I will try to return it.
The mat is too soft for carpets even though it's supposed to be for high pile carpets. Even empty a chair will form divots in the soft plastic that are difficult to roll out of.
This chair mat was not strong enough bear the weight of my wheeled desk chair. Indentations developed immediately Moving the chair across its surface is possible but difficult and annoying.