The chair mat is as described but it does get dents from the chair wheels. Not a huge deal. But the delivery in 100+ degree heat was less than satisfactory. It was thrown over the fence on top of our bin for small delivery packages. The heat softened it to the point it folded into quarters! Should have just laid it flat on the ground... I did put it on a cool hard floor for 24 hours and it is mostly flat. Maybe tell your drivers to pay more attention....
Guess I should have gotten a more expensive thicker mat. The plastic deforms where the casters of the chair rest. So there is also some deformation of the carper underneath. But less than there would be without any chair mat.
As noted on the label it is for carpet that is 1/8-1/4 inch thick. Only use on Carpet tiles. If you use on regular carpet with a pad you will be unhappy. Since the mat is so thin wheels will indent and not roll freely.
These are great under our office chairs with wheels. We have several of these. They usually are sturdy & last for several years. But we replace them from time to time when they start looking dull. (Maybe you can scrub them to make them look brighter again but we just replace them.) So far…they have been reasonably priced at Staples.