This mat is much smaller than the one we had before. It is much too soft and gets pockets where the chair rolls over it. The edges also curl. Wish I had purchased another one like I had before. It was harder and larger. This one was a waste of money for me. I would only recommend using this on a concrete or no pile carpet.
Okay for the price but is not as thick as other chair pads. May crack over time. Dimensions specified should be clearer ie the 36" is the width. The ad does not specify. Good for carpet that does not have a deep pile.