Initially ordered the larger one which took up way too much space. I have just put in new hardwood floors and wanted to ensure the wood was not destroyed by my office chair wheels. This does the job more than adequately and it was a good price.
I am disappointed in this chair mat. It retains the imprint of the chair wheels - even if no one has been sitting in it. It goes back to the store tomorrow
Unfortunately it will not stay where we put it. It is on a very old smooth commercial floor covering. We have had to tape it down or it migrates and develops a high ripple when furniture stops its movement. That ripple has resulted in serious some serious trips.