The mat is not firm and the wheels of my chair sink into it a little making it difficult to move around on it. I ordered online if I had been in the store I would had selected a different mat
This mat is wonderful--it does not do the dimple effect when a castor from a chair sits on it. It took someone at the store helping us what was right for us and listening to what I did NOT want. But it is perfect and easy to slide chair over even though you've been sitting on the chair for some time. It is NOT rolled up when it comes delivered to your door.