This mat is a replacement mat. I have to buy one about every three to five years since they do finally start to get holes in them. But heck these mats are great to put on the carpet so my chair doesn't sink and can move around.
So Far I'm finding the flat carpet Chair mat to be very good I'm hoping that it will remain in it's present condition for a long time.As of now I'm very happy with the Mat.
Had to wait for this but finally arrived at my local store Smooth slide of chair is so good and have not hit my knee on desk (which occurred regularly)