Eumer's tube fly bodies are made ??easy and fun fly tying. Eumer's product package includes the tube fly bodies, inner tubing and hook tubing for finishing your tube fly. Tube fly is easy to tie on to the inner tubing front of the metal body, or you can hide metal body under your own body material. You can complete the tube fly with Eumer Conehead. Eumer-tube flies are used for all fish in all waters. (Salmon, Trout, Rainbow Trout, Perch, Pike)