This mat worked well on my carpet. It stays in place and I can move around in my office chair without fear of the mat shifting. Very well satisfied and I would recommend this item.
I’m disappointed with this mat. In only a week deep grooves have formed where my chair wheels rest. So now I cannot roll the chair around my desk smoothly I have to actually pick up a chair leg to roll it out of its rut. Think I need to return this.
It may protect the carpet but its thickness (or thinness) allows it to compress into the carpet and thus makes rolling the chair around tough - i.e. the chair casters get hung up in the divots . . . or maybe I'm just too fat!