Chair mat is too pliable so your chair sinks into it and then is hard to roll if you're sitting in it. The mat is designed for carpet but it just a tad better than having a chair on the carpet with no mat. Spend the extra money and buy a better quality mat like I wish I'd done. I'd return it but already took off the tags etc.
This chair mat is manufactured out of very thin material. It already has many imprints from the wheels on my chair. I would not purchase this item again.