A 100% fluorocarbon that casts and handles like nylonnExcellent knot and shock strengthnVirtually invisible for more strikesnGreater density allows lures to run deepernTHE SMOOTH CASTING FLUOROCARBON Don't be fooled by "fluorocarbon coated" imitations, FluoroCast is a true fluorocarbon that casts like a nylon monofilament. The high density line allows lures to run deep and is virtually invisible to fish. Amazingly sensitive, FluoroCast provides excellent knot and shock strength for hard hook sets.