Erhu bow hair, white horsehair. Length: Approximately 79cm, Mongolian origin Includes thread for securing the hair. The ends are pre-processed for easy setup on the bow, so you should be able to replace it relatively easily. If the hair is strung and rosin is applied, you'll at least get a sound. But, just because you get a sound doesn't mean it's okay! The surface of the hair wears down from rubbing against the strings, and the grip gradually diminishes. Also, since you're playing by stretching the hair, its elasticity gradually decreases. Yes, without realizing it, your bow could be turning into a "difficult-to-play bow." It's hard to notice the timing when you use it every day. If you thought "Aha!" during the following self-check, replacing the hair will greatly improve your performance! 31.1-inch super bow hair made from unbleached Mongolian horse tail hair. I also have many other musical instrument supplies and parts for sale. Thank you! (*^^)v 【Notes】 ・We are closed for shipping on Saturdays, Sundays, and holidays; shipping will be on the next business day. ・In principle, we can ship the same day if payment is received by 3 p.m. ・All items are shipped free of charge. ・We have stock, so you can buy directly without commenting. ・We will ship with simple packaging. The shipping method varies depending on the product, so please check. ・If you purchase multiple items, there will be a discount on shipping. Please contact us via comment before purchasing. ・The color may differ slightly from the actual product due to lighting conditions and monitor differences. ・We try to answer questions as quickly as possible, but there may be delays depending on the timing, so please understand. ・We will exchange or refund for initial defects, so please contact us before leaving a review. We may not be able to respond after a review is left.