The Sunray Shadow in all its variations is a must have Salmon Fly. Whether fished hitched, stripped fast on a floating line, on the swing, or with a sinking line slow and deep for larger versions it is a must have fly. Often considered too effective to use the first time you fish a pool it should definitely be deployed to check likely Salmon lies if nothing has a go on your first pass.
Plastic tube. Match with the proper Ahrex Hook: