As reviewed by Magnus Angus in Fly Fishing and Fly Tying magazine

An interesting natural material for tying realistic nymph bodies.

No cats were harmed in the making of this product ! It is actually made from lamb or pork intestine.

The material is becomes soft, flexible and translucent when soaked in water this gives a very lifelike effect in the finished fly. Its best to soak it for a while before tying.

The packs each contains 50cm length and the dry diameters are approx.:

Extra Small New! 0.25mm - good for flies as small as #18

Small 0.4mm

Medium 0.5mm

Large 0.8mm

When soaked in water the length remains the same but the diameter increases by about 50%