Tobisen 1 Grey White is a sand eel imitation for seatrout. Sand eels are an important food source for seatrouts and other predators. Sand eels live at sandy beaches and good time to use this fly pattern is when water temperature is a little bit higher at spring and fall. Roly Poly stripping technique is usually effective.
Hook size #4, total length of the fly is approximately 8 - 9 cm.