Needed to put weight on it to straighten out. Also appeared to have pop spilled on it and needed to be washed before using. Mat appears to be ok now and useable. However it was shipped with no covering or protection on it other than a ship to ticket. I think you can do better.
This is perfect for having a chair on a carpet especially one with wheels as it is so much easier to move around and protects the carpet at the same time. Stays flat and great quality.