This mat is absolutely perfect for my office. It makes a huge difference when sitting on carpet. There are no chemical odors and the mat did straighten out in a couple of days.
It covers the area where my desk chair stands it covers the carpet there. That saves the carpet from the chairs wheels and covers the carpet from spilled drinks.
It was delivered as it is not rolled up. Delivery man leaned it up against our house so had to put it in the garage with a few boxes on it to flatten out any warp. REALLY wish they would NOT place those huge stickers on the mat! They do not peel off easily leaving stuck label pieces.
I don’t like it at all smaller then the one I had only reason I kept it was because my other one didn’t have dimples in it for carpet. I put this one down first and my other one on top to make it work. To much work to return