GAT Custom Brass Saxophone Neck Screw Saxonorite Saxophone Neck Screw, 1st Generation Nickel Silver, Silver Plated For Yamaha (also compatible with Buffet Crampon, Keilwerth, etc.) Personally, I prefer this 1st generation over the 2nd and 3rd generations, and I've kept it, but I'm selling this one as I've been using it less. The case says "for Buffet Crampon," but there's no particular difference from the Yamaha version. Nickel silver with silver plating is a finish that works well with woodwind instruments, also used for clarinet keys, etc. It has power while also producing an elegant tone. Especially with Yamaha Custom saxophones, the neck socket is also made of nickel silver, so it feels very integrated and compatible.