This is the only mat that fit in my desk space. It is not thick enough to work on a carpet The wheels sink into tne mat and make it difficult to roll. I knew this was going to be the case but it was the only one that fit.
Finding this mat at Staples is as easy and the staff was very helpful. I took it home placed it under my desk/chair and now I am moving freely around my desk!
Not too bad for the money but if a person could afford a thicker stiffer mat it might be worth it. This mat is so soft / thin that the chair legs dig into it. Also so far after ~10 days one corner is still bent up. Will try heating it with a hair dryer to see if I can flatten it out. -HDK