This mat allows me to roll my office chair on top of my new cut pile carpet. It does tend to get "dimples" where the wheels sit for awhile but I can still roll around. Good price for what I got.
The plastic is not very thick so there are indents from the chairs wheels. otherwise it makes it easier to roll around. also protects carpet it was nice to have a choice of sizes. Store manager wrapper it in a roll so it was easy to carry.