This carpet chair mat is of good quality for the money. It is a lower price point mat so it should be expected to be less substantial than others. It is a little thin and slightly bends over unevenness in the floor surface. Because of this the wheels on the chair will sort of stick between the anchoring cleats of the mat.
The mat arrived rolled up tight and has refused to flatten out for multiple weeks. There have been weights on various areas of the mat the entire time without success. If you take a weight off of the edge and it appears to be almost flat it will be curled up again the next day. My only hope may be to wait for a hot sunny day and lay it outside in the sun for the entire day. The mat may be OK if it ever flattens out.
THIS ITEM IS NOT WORTH PURCHASING... TOO FLIMSY TOO THIN CHAIR LEAVES DENTS IN THE MAT EVEN WHEN YOU ARE NOT SITTING IN THE CHAIR... RETURNED THIS ITEM TO THE STORE.