Shamisen Tuning Pegs, Set of 3, Traditional Japanese Musical Instruments, Stringed Instruments, Hosozao (Thin Neck) and Chuzao (Medium Neck) I don't have expert knowledge, so I don't know the details! I believe these are shamisen tuning pegs. I think they are made of natural materials, but I don't know the specifics. Please check the photos for details and condition. Please refrain from purchasing if you are a nervous person. Thank you for your understanding. [Other] Please ask any questions you may have.