These dock lines are made from premium three strand nylon by New England Ropes. These lines offer incredible durability, excellent handling, and long life. Treated with a water repellent for the ultimate resistance against abrasion and keeps rope flexible. New England Rope Three Strand Nylon dock and anchor line is identifiable by a fine red tracer-accept no generic substitutes! These quality lines are available in a number of different diameters, and can be purchased by the foot or by the spool.