Catgut is a great fly tying material and flies tied with a catgut look very realistic.
50cm/bagSize L is for hooks #8 and #10Size M is for hooks #12 and #14Size S is for hooks #14 and #16Size XS is for hooks #16 and #20L=0.7mmM=0.5mmS=0.3mmXS=0.2mm
It can be used for the tying of nymphs and dry flies, giving them a slight effect of iridescence. It is easy to use and allows you to quickly create all kinds of imitations.
Length: 10 m.
Size: 520 DEN
Extremely fine and strong tungsten thread that works well for tiny nymphs.
Use the extra fine for up to size 28 and the fine one for 12 through 20.Spools of 27,34 yards as pictured, diameter of 0.10 mm