Berkley steelon nylon coated wire is great for use in saltwater because it is non-corrosivenThe nylon coating provides extra protection to reduced wire fraynSteelon has a seven strand construction which give the material its flexibility and its ability to not kink easilynPerfect material for art shows, wind chimes, crafts, models and other uses as well as fishing leader materialnAvailable in black color and 20-pounds line test; measures 30-feet lengthnWhen it comes to terminal tackle, we can sum up our performance in just one word - strength. Berkley components are guaranteed to handle the toughest tests.