This is a Scientific Anglers Mastery Series Bonefish fly line, model WF-9-F in the Horizon color.
It is designed for saltwater fishing with a 100-foot (30m) length and Tropi-Core technology for tropical conditions.
The taper is engineered for delicate presentations to skittish fish, featuring a stiff coating and core for improved casting accuracy.
Stiff core, small diameter, long belly.
• More distance and accuracy, less tangles.
Delicately delivers flies to wary fish.
• Compound taper excels in wind.