The smooth nylon coating seals out the water to improve the lifespan of the line, and provides additional abrasion-resistance for the extra sharp teeth this wire leader will encounter in the ocean. It is soft and flexible, which makes for easy handling for the angler, but more importantly, it is super-strong so can be used for trolling or when fishing with either live or dead baits. It can also be used to prepare rigs or leaders if you dont want to wind the entire length onto your reel. Theres nothing worse than losing one of your all-time lures to a shark, mackerel or barracuda. Lures are getting more and more expensive to replace, so make sure you have some wire trace handy when trolling with lures offshore. If you are targeting school or Mako sharks, then you simply must use a wire trace. The Surecatch Wire Trace has a line rating of 30 pounds and comes with 10 metres of leader.