Eumer's plastic tubing for tube flies are made ??easy and fun fly tying. 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)
X Small 1.45mm fits into the Medium 2.47mm
Small 1.93mm fits into the Large 3.00mm