I'm using this mat under a large heavy swivel desk chair and it performs perfectly while looking nice and is relatively inconspicuous. it stays put and doesn't curl up. The chair rolls easily on it. My only complaint is that I bought it online and had it shipped to the local store where it arrived tightly rolled and encircled 2X with wide clear plastic tape of the kind used to seal cartons for shipping. It was nearly impossible to get the tape off requiring a half-hour of picking and scraping. There has to be a better way. Somebody in the shipping department should be wrapped in that stuff and hung up to dry!