Naturfil is an animal gut string that is used in the tying of nymphs. When it comes into contact with water it transforms, becoming soft and translucent, simulating in a very realistic way the shape and consistency of the bodies of the nymphs.
Naturfil is an animal gut string that is used in the tying of nymphs. When it comes into contact with water it transforms, becoming soft and translucent, simulating in a very realistic way the shape and consistency of the bodies of the nymphs.