When the Callibaetis are active this is the one to have in your box. The fish key in on the marabou gills (back part of the wing case). The epoxy wing case is extremely durable and helps keep the fly together. This pattern is deadly in both rivers and lakes where Callibaetis are a main food source.
Mustad Hook Details: The Mustad Signature fly hooks feature unique sharpness and strength. Developed in cooperation with the world's top fly tiers to exact proportions between, gap, bend, wire diameter and shank length for precise scaling unmatched by others. Micro barb can easily be pinched down without damaging the hook for barbless applications. Bronze finish. Chemically sharpened, Nor-Tempered high carbon steel.