I purchased this for my office with a med. pile carpet. I am 200 lbs and I don't have any problem with divets or anything in it. I plan to order an additional one.
Arrived promptly. The little nobbies on the underside of the mat hold it tightly in place on carpet. The good grip allows your chair to move easily. The size allows enough room to roll chair back & forth and side to side without running off mat.
I have purchased one for each individual office in my building. I now have five agents one receptionist one extra desk and two desks in my office for a total of ten mats I have purchased. Each desk has a mat over the carpet and the carpet stays in great condition. I find it a lot less expensive to put in a mat than to have to replace the carpeting. As new agents come into my office I will purchase a mat for each desk area. I have been very satisfied with the product & would highly recommend it to anyone.