Scientific Anglers Frequency Full Sink VI Line -Using the latest technologies that sets Scientific Anglers apart from the rest of the competition in the fly line industry the Frequency fly lines have been designed with the customer in mind. Allowing the angler to choose their application and needs the Frequency line has a variety of different options that are ideal for every type of fly fishing out there. Advanced shooting technologyWelded loopEspecially effective for fishing streamersThin diameter cuts through windIdeal for use in stillwater situationsMid-length head for enhanced line controlSink rate: 3.0 - 5.0 ips (Type VI)Monofilament coreColor: Dark Grey