Bone nut for bass guitar, for 38mm. Length: 38mm, Height: 6mm, Thickness: 3.3mm Flat bottom I also have 43mm and 5-string bass nuts for sale. I also have many other guitar-related items for sale. Please take a look at my other products if you'd like (*^^)v Thank you (*^^)v Shipping is basically by regular mail (no insurance), but postal accidents occasionally happen. For an additional 60 yen, you can change to Click Post, which allows tracking. Please request this in the comments. 【Notes】 ・Shipping is closed on Saturdays, Sundays, and holidays; it will be shipped on the next business day. ・In principle, 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 commenting. ・We will send it in 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 costs. Please contact us via comments before purchasing. ・The color may differ slightly from the actual product due to lighting conditions and monitor differences. ・I try to answer questions as quickly as possible, but there may be delays depending on the timing, so please be aware of this. ・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 has been left.