This mat is the perfect size for my desk. However it was shipped in an open top box with tape across the entire opening sticking to the mat. My husband and I have spent over two hours trying to remove the glue residue from the tape. We finally gave up and hope that it will wear off but in the meantime my chair casters stick as I roll across. Not sure who made the unwise decision to ship it this way but it has changed the way I feel about ordering online (which was my only option for this size mat). I would have returned it but was afraid that the replacement would come the same way and we'd start all over.
Co-worker was concerned as she thought a new mat might not be durable enough. This one is not too thin to cause the chair to create wear too quickly and we were able to throw away her old cracked mat she was hanging on to for too long.