Acoustic guitar oil-soaked, vintage saddle processed. Made of cow bone and processed, making installation easier. This product is an authentic nut where a specialized workshop has achieved oil penetration through a special manufacturing method. While the sound is a matter of preference, the oil's effect significantly reduces wear from strings. Tuning becomes stable. Saddle: Length approx. 72mm, Height approx. 9mm, Width approx. 2.9mm We also have blank nuts and saddles without string grooves. If you are interested, please comment. We are also selling many other guitar maintenance supplies. Thank you for your consideration (*^^)v Basically, we ship via regular mail (no guarantee), but postal accidents rarely occur. For an additional 60 yen, you can change to Click Post with tracking. Please request this via comment. [Notes] - We are closed on Saturdays, Sundays, and public holidays. Shipping will be on the next business day. - Generally, if payment is received by 3 PM, there is a high possibility of same-day shipping. All items will be shipped free of charge. - We have stock, so immediate purchase without commenting is OK. - Items will be sent in simple packaging. Please check the shipping method as it varies depending on the product. - For multiple purchases, there will be a discount on shipping costs. Please contact us via comment before purchasing. - The actual color may differ slightly from the product due to lighting conditions and monitor differences. - We will try to answer questions as quickly as possible, but please understand that there may be delays depending on the timing. - For initial defects, we will offer exchanges or refunds, so please contact us before leaving a review. We may not be able to respond after a review has been left.