The raw materials for making brush pens are wool, weasel tail hair, mountain rabbit hair, stone badger hair, and fragrant raccoon hair. Pig palm, horsetail, oxtail, chicken hair, rat whiskers, lanugo, etc. are also widely used. The brush holders are mostly made of bamboo tubes, such as green bamboo (roasted red), purple bamboo, illustrated bamboo (Xiangfei bamboo), Arhat bamboo, etc., and mahogany, horns, aggregates, ivory, and jade are also used as poles, which are more luxurious.
The production of such brushes must go through the process of selecting materials, degreasing, ingredients, grooming, pressing, curling, picking, tying, lining, dry repairing, sticking, lettering, lanyards, and other processes. To sum it up, it is commonly known as the two major processes of “water basin” (processes operating in the basin) and “work” (waterless processes such as heading, dry repair, etc.).