This mat is so thin that when I sit in my chair the wheels make deep dents in the mat an I can not move the chair without getting out of it. I weight 185. It can not be used on a thin carpet.
This purchase I should have made a long time ago because it protcctd my carpet and I can move more easily in my bedroom.when there are wheels on your desk chair it rather hard to move from place to place.
Had a new carpet installed was looking for something o protect my new carpet the flat pile carpet mat fit perfectly and serves the purpose excellent quality no chair marks on the new carpet.