We have the pleasure to offer you one of the best materials for tying nymphs!! Troutline Catgut Biothread. This fantastic fly tying material has an opacity aspect when it’s dry and when it gets wet it becomes milky translucent. When it’s dry the material is stiff and a little bit difficult to work with so we recommend that it should be used wet! For that, you should keep the material in warm water for 3-5 min. The color will change from opaque to milky transparent color.
Different threads under different catgut will give the underbody different shades of color. Fabulous for making bodies on nymphs, larva and emergers.
*Size Large (L) is for hooks #8-#10 L=0.7mm
*Size Medium (M) is for hooks #12-#14 M=0.5mm
*Size Small (S) is for hooks #14-#16 S=0.3mm
*Size Extra Small (XS) is for hooks #16-#20 XS=0.18mm
-Special treated for long durability in water.