Hare mask, DHM 10 is very good fly tying material for tying flies. We recommend it for tying of body of nymphs and larvae. This fly tying material can be used with a rake for the combing of this material. Then the fly seems very reliable/tasty/ for the fish. This fly tying material can be combined with other fly tying materials without any problems. 
The fly tying material includes the sparking fibers.