Compatible for use with their Pre-Cut Metal, Large Rigid Plastic, and semi-flexible Large Poly Tubes alike, HMH's Regular Wall Micro-Tubing is perfect for nesting your own bottle-type tube fly creations. Conveniently sized to fit through most any manufacturer's standard-tapped fly tying beads or cones, and easily flared or rounded by quickly licking the cut-ends with a lighter or candle flame, HMH's versatile Micro-Tubing comes packaged in generous 36 inch continuous coils, color is Clear.