Model Brass
Gold lacquer Silver-plated Gold-plated
M1: straight SM1 SM1S SM1S
M1: curved SM1R SM1RS SM1RS
F1: straight SF1 SF1S SF1GP
F1: curved SF1R SF1RS SF1RGP
G2 SG2 SG2S SG2GP
G2R SG2R SG2RS SG2RGP

* These necks are available with YSS-875EX.