I bought this chair mat to prevent further damage to wood floor under a rolling computer chair.  It's in a main walkway in our dining room, so needed something with rounded corners to prevent stubbed toes.  I also wanted it to be clear enough to blend in and to allow the floor to show through.  This mat is perfect. It is durable, good quality, and reasonably priced.  Nicer than other mats I looked at in office supply stores.