Depending on the material and workmanship, the price of fetal hair pens ranges from more than one hundred to several thousand. Fetal hair pens are made from the first hair cut of newborn babies. Many parents make pens for their newborn children as a souvenir. It is said that in ancient times, a scholar went to Beijing to take the exam and wrote with a fetal hair brush. He became the top scholar in high school, so he was also called the top scholar. The history of fetal hair brushes can be traced back to the Tang Dynasty. Among them, Qi Wei of the Tang Dynasty recorded this in the "Poem of Sending Fetus Hair to Ren Gong": "The inner part is the fetal hair and the outer part is thin, and the green jade is newly cut and tightly bound." The bristles of hard brush pens are more elastic, and common ones include rabbit hairs, wolf hairs, deer hairs, rat whiskers, stone badger hairs, mountain horse hairs, pig bristles, etc. Rabbit hair pen. Rabbit hair brushes have a long history. The Warring States brush unearthed in Changsha was made of rabbit hair. It is made by splitting one end of the pen stem into several pieces, inserting the pen tip and then tying it tightly with silk thread. Rabbit hair is divided into two types: purple hair and white hair. Purple hair is made from the hair on the back (also called arrow hair) and tail of rabbits. It is soft and strong. The white ones are more sharp and not as soft as the purple hairs.
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