Polypropylene Mooring Ropes are a "MELT MIXTURE"* of first quality European virgin raw materials Polypropylene, High Density Polyethylene (Min 15% - Max 50%) and UV stabilizer and other improving elements (5%), bright white colour with red-green stripes. They are made of round continuous filaments (MONOFILAMENT type) with high tenacity yarns, almost like Nylon's.