Scientific Anglers Amplitude Smooth Bonefish Plus Fly LineAMPLITUDE SMOOTH BONEFISH PLUS Floating Fly Line Features an extended head length and is a half size heavier than the standard bonefish taper, but maintains the short front taper to cast long leaders with ease. High contrast sighter to identify the back of the line when fighting fish on long runs. COLOR: Black sighter Pale Yellow Ivory. SIZES: WF6 thru WF9. SCIENTIFIC ANGLERS AMPLITUDE SMOOTH SERIES of lines are, simply put, the highest performance