If using as an extended body or Worm, taper the end of the chenille by flashing with a lighter flame Perfect for San Juan Worms, Greeny Weenies, Lures, Nymphs and extended bodies on Dry flies like Caddis patterns 20 colors in the range 5 meters of yarn per pack 20 colors in the range Top quality Suede Chenille with a versatile range of uses. Micro comes in a 1.0mm diameter. Small comes in a 1.5mm diameter. Medium comes in a 2.5mm diameter.