The grippers on the bottom are not long enough to hold to the rug. It tends to migrate toward the desk leg then bunches up and then does not lay flat for a couple of days. I would not recommend this product.
It doesn't seem to heavy but it was a cheaper one so guess I shouldn't complain. I had gotten my first one (I think @ Staples ) and it was a lot heavier and a bigger one too.......liked it much better......
Bought the mat to go with an executive desk in a low-pile berber carpeted office. My executive chair is large and just so long as I don't move around too much it's good. In retrospect I probably should have gone with a bigger mat and custom cut it to my liking/office layout.
This is a good basic mat. After a week of use however I have noticed "dents" in the plastic where the chair most frequently stands. But it looks good and provides a smooth even rolling surface which is its primary function.