I've bought 3 different mats from Staples in less than 3 years. They all crack and don't last long even the thicker more expensive ones so now I just buy the cheapest one because I know it will have to be replaced.
I BOUGHT THE SAME PRODUCT BEFORE FROM [...] BUT AFTER LESS THAN A YEAR OF USE IT STARTED TO CRACK AND LATER BRITTLE AND DISCOLOR. IT'S MORE EXPENSIVE THAN THE ONE I BOUGHT FROM YOU.
Earlier products cracked easily after very short periods. This is the first advertised for thicker Berber type carpeting and so far seems to be the answer. It is soft and wheels leave quick impressions but they disappear shortly after chair is moved away to a different position.
[...] It slides quickly until it runs up agains the desk leg then pushes up the side of the desk. I have to reposition this mat several times each day.