Abstract: A thermoplastic baling strip comprises an elongate band of thermoplastic material said elongate band having sufficient flexibility to be formed into a knot; the elongate band having an outer surface formed with a set of surface undulations extending along its main length. The plurality of surface undulations operate in use to grip a surface to which said strip surface contacts. The use of undulations extending along the length of the strip enable the strip to be reliably tied in a knot, without releasing or coming undone when transported. Complete bales can be fed into an incinerator without the need to remove the baling strip, which burns on incineration.