Entirely too flimsy particularly since it is advertised as being designed for use on carpet. If you use it on carpet your chair wheels will create severe depressions in the flimsy material making it difficult to move your chair and it eventually will crack and break through.
This thing slides all over carpet like crazy. If you step on this mat without a chair on it you might very likely lose your balance and fall on the floor. Even with the chair on the mat it will still slide and is very annoying.
I bought this to replace another Staples pad that I had for two years but had started cracking. While I thought I was buying the same thing it is not. This pad slides on carpet so I am not as pleased as I was with the other one.