Thicker than my old mat. Does move a little but it does the job. The teeth on the back could be a little bigger to dig into thick carpet better. They aren't as sharp and deadly as the older mats but maybe they should be so it holds on the carpet better.
Description said good for 1/8th inch flat pile which matches what the floor covering I have. I'm average weight and my chair wheels make a depression in the mat. So the wheels don't roll very well.