This is a nice sized chair mat for a home office. Clear plastic and durable so far. Does a good job of protecting the carpet and has sharp tips on the down side to keep it in place.
It arrived flat which was nice. Not as stiff as I had hoped and the bumps on the bottom that go into the carpet are not as long as I had hoped. I have a thicker carpet and I need to keep readjusting it because it slides---not much but enough where I need to keep shifting the mat. If I didn' t have such a thick carpet it probably would work fine.