The chair mat creates divots within a few minutes of sitting in the chair and makes it difficult to move around on teh chair rollers. I would not recommend this mat.
I'm returning this item. I loved the size and rectangular shape of the mat but it it wasn't firm enough. After a couple hours the wheels on my chair started making indents in the mat. I weigh about 150 pounds. My chair settled into the indents rather than sliding smoothy across the mat.
My other carpet chair mat had been rolled over so many times that it finally got brittle and starting breaking off in pieces. We are talking several years but now with working remote due to covid my desk area has had more traffic every day. It was time for a replacement and now I'm once again gliding over it with ease.