Midgar tubefly tubing is a concept designed to fit both traditional and contemporary tube fly tying style. The tubing system consists of a rigid, tough and meltable inner tubing, with a softer, meltable outer tubing. The inner and outer tubing are delivered in 4 matching sizes; small, medium large and x-large, where medium innertubing fits perfect to medium outertubing and so on. Midgar Tubefly Tubing Concept enable you to tie proportionately perfect tubeflies from the smallest micros for summer and fall conditions, to the largest cold water spring tubes. Sold per the meter.