I'm not sure you can even get them anymore. I've been using the hair from a deer's mask since I started tying caddis patterns. It was suggested to me by a guy who ran a fly shop in Willow Grove. He's been dead many years. He accidently drowned fishing for stripers on the Cape. He told me if I planned to tie a lot caddis, rather than buying a bunch of different patches of deer hair I should try the mask. He was right. There's a variety of different colors and types on it. He sold me one for $12. It lasted me almost 5 years. I was able to get a replacement mask from English Angling Trappings, I still have half of it left.