Airflo Superflo 40+ Extreme Sinking LineCombining Airflo's 'Superflo' technology with their best selling 40+ Extreme fly lines was a mouth water prospect. The ability to incorporate Superflo's ultra thin running line and super slick coating would enable the 40+ fly line range to produce even longer casts! Easy casting 35ft head Twin colour for optimum loading Yellow Running Line Power core Excellent single hand switch casting line Overall length 41yards 123ft Line Weight Density (Di) Head