The chair mat is soft enough to indent from the casters. Makes sliding movement over the mat hard...have to push instead of gliding to move. Should have considered the harder acrylic chair mat.
Good floor protector. Works very well on a carpet. Lets desk chair move more easily. Not so good on hardwood floor because of the little points on the underside. This is a lot less expensive that most of the name brands and may be slightly smaller but the quality is just as good.
I would not recommend this chair mat at all. We replaced it with a higher quality from a different store within a week. You get what you pay for is so true!