I purchased this chair mat because like many people I am working from home more and my office chair was destroying my carpet I choose this one for its sloped edges not a hard bump if your chair rolls off of it. The one downside is it is very heavy to move as I discovered when replacing the rug.
The mat is supposed to be for carpet. Unfortunately the plastic is to flexible and the chair wheels sink into the plastic which makes it difficult to move the chair. Would NOT recommend.