Purchased it to protect our carpets but it has a very uneven surface to roll your chair over. It also has a strong smell that no one in the office could stand. Had to air out the office and remove the mats.
I use the mat under my computer chair to protect the wood floor. The top layer of the varnish/shellac on the floor was starting to peel from years of the wheeled chair rolling back and forth over it. The mat is exactly what I was looking for.