RIO PREMIER BONEFISH Floating Fly Lines with SlickCast and WELDED LOOPS INSTALLED on both ends. Unique new taper design allows fast loading, precise casting and presentations at close range, or to the horizon! A hard coating with a medium-stiff core results in longer casts and a line that holds up to the heat in extreme tropical conditions. 100-ft line. Blue running line with Sand head. WF6F thru WF9F.