I received three horse hair knots today and did a dry fit with the Jayaruh #22 handle. This probably is not going to be the final home for the knot. I just want to see how it would look in this handle. The reddishness of the knot goes well with the red oak handle. I will be making some more handles from some walnut that I have on hand and using the horse knots in them. I will probably give them a reddish stain too.
Horse hair is used in brushes for men who have religious objections to boar or badger hair. Jews and Muslims generally fall into that category. So, horse hair or synthetic brushes are acceptable for their use.