GREAT WHITE GWPT1 Poly 1-Ply Tying Twine 6,500' 1 Ply 6500 Great White Ploy Twine. Superior Tensile & Knot Strength A Premium poly twine, use for Industrial packaging & bundling Twine dispences directly thru punch out hole in top of box Resistant to rot, mildew, moisture and economical for its high quality! Made from only the highest quality Polypropylene fibers. Great White Brand.