Stren® Magnathin™ is amazingly thin, astonishingly strong. Natural lure action and low visibility are two features that position Stren Magnathin as a top choice for clear water or line-wary game fish. Yet the defining feature of this remarkable line is its exceptional strength-to-diameter ratio. Anglers can drop down a size or two without sacrificing strength. When strength, thin diameter and casting accuracy count, knowledgeable anglers count on Stren Magnathin.