My previous chair mat had cracked so badly that pieces were about to break out of it. I received this one and rolled it out into place. I had to place some weighty objects on the edges to help flatten it out but it works fine. I does slip a little and I have to readjust it slightly from time to time but my chair rolls well on it. I have no complaints.
If you want a floor chair mat this is better than nothing. This mat wasn't for sale in the store so a salesperson ordered it on-line. I made a huge mistake by not checking for spikes on the bottom of the mat; there aren't any! The mat slides on the carpet daily and jams itself someplace usually against the desk.
THIS IS NOT AS HARD OF A MT AS WE WANTED IT STILL DENTS IN WHEN YOUR OFFICE CHAIR IS ON IT . NOT TOUGH ENOUGH HARD TO ROLL ON. NOT REALLY HAPPY WITH ITEM. WOULD NOT RECOMMEND IT AT ALL.
Right size for large based desk chair and high pile carpet. Time will tell if the product lasts. Looking for at least a 5 year ware before failure due to the expense.