My husband tried it under his work chair and the chair wouldn’t move. My daughter took it to use and the chair would actually move however wherever she sat in one spot it dented in after only a couple of hours!! My daughter is not big!!! Not worth the time or money.
I have used many of chair mats over time. But now that I work from home. This is the best chair mat I've ever had. It does everything I expected chair rolls well. Eazy to get back on it if you happen roll off. I would highly recommend this chair mat
Unfortunately on a short nap carpet the wheels of the chair sink into mat making a crater that is then hard to move your chair easily. Recommend only on heavy nap carpet.