Tube Fly's were originally introduced in the United Kingdom and Scandinavian Countries. The application was that a variety of different patterns could be easily attached to a separate hook with different dressing. It also prevented damage to the fly because the fly itself was threaded on a leader. Today almost any streamer,nymph and saltwater pattern can be adapted to a tube fly. A series of different tubes can be easily combined to create a completely different fly with a different action/
