Comes with strange not professional label. Pricelene for all line of mats is overpriced for about 300%.Hardness for mat 36x48 for lowcarpet priced [$] is not acceptable at all. Fake product.You have to review your price policy to sell good quality products for reasonable low prices.
Currently have mat on top of carpet. Chair's rollers tend to sink into the mat quickly so rolling can be difficult. It does protect the carpet (which was the goal). That said I'll probably invest in something a little better/thicker next time around.
I use this for my computer chair which I use about 3 hours per day. The mat protects the carpet and doesn't slide around. The main con about this product is that it becomes indented from the wheels.