The mat specifies it is for low pile carpet but with the first use my desk chair casters created indentations in the mat that made it hard to role the chair. The indentations remained after moving the chair and did not come back level even the next day. This mat is just to flimsy to work as a mat on low pile carpet.
the mats i bought are great for my use. They won't get heavy use so they're are fineJust needed something to protect carpet and roll chair easieryes i would recommend for light use