HA Boliven 5cm is a fly for the most discerning salmon! Low tide, clear, warm and sun can be a dilemma to attract salmon to bite. Then this goes on, it is tied completely with no fluorescent material so that the salmon will see it at the last second and be surprised so the chop becomes impulsive. They can not resist it. Recommended hook size: #12 treble, #10 double, #6 single. Guideline HA is a salmon tube fly series designed and tested by renewed angler and fishing guide Hajas Andersson from Åre, Sweden. He works at famous Hembre Gård by river Stjördalsälven and his flies are produced and distributed exclusively by Guideline.