SumacLife Office/Home Clear Vinyl Carpet Chair Mat 45" x 53" Rectangler with Lip Straight Edge Carpet Chair Mat with Lip. Approximate dimensions 45" x 53" Commercial grade chair mat designed with durable long lasting vinyl material. Studded underside holds the mat firmly in place | Suitable for use on low and medium pile carpets (Max. pile: 0.2") Allows your office chair to move freely while carrying out daily tasks, helping considerably reduce the risk of leg fatigue. Designed to prevent against wear and tear caused by office chair casters