This is a slightly slender Okinawa sanshin neck, similar to the Kuba Haru style. Only the neck shown in the photos is for sale. It shares the characteristics of the Kuba Haru style, except for the lack of a triangular hole in the core (only a mark is drawn), such as the stepped core, the absence of a pigeon breast design, and a thin, flat ten (top). Judging from its appearance and feel, I believe it is probably ebony. My apologies if I am mistaken. The weight is approximately 650g. The maker is unknown as there is no maker's mark. This is a used item, so returns are not accepted except for damage upon arrival. Thank you for your understanding.