The photos for this product show a light colored mat that is slightly clear with grips for carpet. The mat I received was solid black without grips. The product numbers matched what I ordered. I looked back at the product page online and there was nothing that I could find that indicated that the product might be different that the light colored product shown in the photos and described online. I ordered for store delivery. The employee said that the mats were sometimes shipped in black and that the grips were not needed on carpet. He double checked the product numbers and said to try the mat to see if I liked it. I tried it. I didn't like the lack of grips for medium pile carpet. I didn't like that it was dark when I expected a light color. The carpet in the room is cream and I just repainted the walls to make the room bright hoping to make the small space feel bigger. I had to return it and buy a different brand since I couldn't count on this one to be as advertised. Also the black mat that was shipped dented where the chair wheels sat for the brief 10 minute trial period before I returned the mat. It would probably work fine on hard floors or on thin pile carpet.
This is a good general-purpose chair mat. I needed to trim the tongue in order to fit it into the opening in my desk but that was a fairly easy modification. It's not as thick and heavy-duty as mats I've used in professional office settings but a thicker mat would not have been as easy to trim. I'm very happy with it.
It's functional but too thin for the rug I have. I measured the pile of the rug and matched it to the specs for the mat but it's a bit too thin to keep the desk chair from forming depressions and settling.