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 can at least produce a sound. However, just because a sound comes out 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 play 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 think "Ah!" after 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】 ・Shipping is closed on weekends and holidays; shipping will be on the next business day. ・Basically, if payment is received by 3 p.m., there is a high possibility of same-day shipping. ・All items are sent with free shipping. ・We have stock, so you can buy directly without a comment. ・We will send it in simple packaging. Please check the shipping method as it varies depending on the product. ・If you purchase multiple items, there will be a discount on shipping costs. Please contact us via comment before purchasing. ・The actual color may differ slightly from the picture due to lighting and monitor differences. ・I try to answer questions as quickly as possible, but it may be delayed depending on the timing, so please understand. ・We will exchange or refund for initial defects, so please contact us before evaluation. We may not be able to respond after evaluation.