Only owned this for a week. This mat is a bit thin and flimsy. My chair wheels leave imprints in the mat even though the mat is new. The depressions also make it hard to roll my chair as the wheels get stuck and takes extra effort to get out of the dips. I suspect the mat won't last long. The carpet is short pile and dense...commercial grade stuff. I purchased a similar mat in person from Staples for my other work station but it was much thicker and stiffer which equals more durable and easier to roll my chair. I bought this online so I could not see the thinness. They don't list the thickness in the specs. I measure 2.3mm for the thin and 3.7mm for the thicker one. I would have purchased the thicker version if it was clearly marked what I was getting. I am in my chair 5-6 hours a day. I don't see this lasting more than a year. Also this is merely a sheet of plastic...why does it cost $42?
Mat itself is as advertised and perfect. However it had to be returned and replaced because someone had written "26" on it with a permanent black marker.