This quality is available in rubber backed or rubber edged with polypropylene material on surface. the innovative raised twist carpet pile effectively traps moisture and dirt. Together with its anti-trip bevelled edges, great appearance and tough carpet surface, these entrance mats are ideal for office and home use. - polypropylene with rubber backed embossed features â�¢ rubber backing ensures mats to be anti slip. Â�¢ absorbs water. Â�¢ mats have an elegant appearance.