Abstract: This invention relates to extruded material having swirled coloured appearance. Two polyolefin mixtures are prepared. The two mixtures are generally the same except that one is of a first colour and the second of a second colour. Each of the first and second mixtures are kneaded in respective dispersion kneaders. The resulting melt from each kneader is cut into random sized pieces. The random sized pieces of the two melts are placed in a hopper of an extruder and the extruder operated to force the random mixture through a die. The resultant product has a first colour with a random swirled pattern of the second colour. The resultant product is then cured.