my helper and I got the wrong one so I have not used it.
Response from StaplesBy September 10, 2019
Hi Frances we're sorry to hear that the Staples Flat Pile Carpet Chair Mat does not meet your needs. To request a return for items ordered online please contact us at 1-800-333-3330 option 3 or access our return center by logging into your account at www.staples.com. If the chair mat was purchased in store you may return to the store with receipt within 14 days for refund. https://www.staples.com/sbd/cre/help-center/returns-policy/