Tarred Nylon Twine - 1 lb. spool contains approximately 470 linear feet with a 340 lb. breaking strength. This twine is especially black treated and dried before it's put on a reusable plastic spool. It has many advantages over twine treated by "spool dunking." It is uniformly and deeply coated from one end to the other - no "zebra stripes" or tar globs to come off on your hands. It's dry, easy-to-tie, and holds knots well.