Our black 8 strand ropes are made from Polyester. These ropes are great for mooring lines and are very easy to splice and have 5% Stretch.  See 8 Plait Nylon for White 8 Plait Technical Data Diameter (mm) 10mm 12mm 14 16 18 Stength (KGs)  1700 2700 3700 4700 6300   Please note this can be ordered by the reel or in specific sizes if required. Load-Elongation Curve Elongation is based on figures taken from tests across the diameter range, to produce an average figure.