The product is advertised for use on flat pile carpet. I have a low pile carpet - not flat enough I guess - but certainly nothing that can be described as plush; far from it. The matt quickly developed depressions where the casters on my office chair usually are making it more difficult to roll around than if the matt weren't there. This product should be limited to hardwood linoleum tile or other hard surfaces. Use on carpet only if the carpet is VERY thin.
I have a five legged caster office chair. The mat develops indents under the casters and it is hard to move sound. Plastic should be thicker to avoid indentations.
Do yourself a favor and buy the more expensive chair mat .. .I wish I would have. I had a mat for 10+ years on a hardwood floor but now I needed one with grippers to go over carpet. It STILL slides and my chair wheels make huge indentations. Get a better mat! Not a great choice too thin.
The mat that this mat replaced didn't show dents in the mat or the floor. I had it over 10 years and it was starting to crack. Guess it was more plastic and durable than this rubber mat. I do think this mat will last a year. I am 5'2" tall and not overweight but this mat has dents in it already. Are you sure you want future reviews from me?