It is thin but I don't need a thick one. The chair rolls effortlessly on the mat. It does show wheel indentations as others have said but they go away when the office chair is moved and the wheels are not left in the same location every time.
The floor mat Material is much too thin. My chair castors leave indentations thus limiting free movement. I would not recommend product for use over a carpeted floor.
Love the mat but wasn't happy with delivery. Thought it would come wrapped as it was a gift. instead it was thrown on the front step in the snow fully exposed to weather. husband found it. disappointed as it was a gift for him.