I purchased one several years ago for about the same price that is much stronger than this one. the wheels on the chair put dents in this pad regardless the thickness of the carpet.
Chairmat began to fall apart after about 2 years. Was not abused or used by person of excessive weight. Purchased a name-brand product about 10 months prior to this one and it is still in perfect condition.
I can't believe some of these reviews I received my mat flat in a box it's very heavy duty I weigh 225 and have a heavy chair and I don't sink into the mat. It's very thick and easy to roll around on. I guess i just got a good one. RP
My office recently recieve new hardwood floors and did not want to damage them and this mat is great. It is easy to roll on and does not slide very much. For the price you can't beat it.