Model
Key
Bore
Bell size
Bell type
Material
Valves
Valve casings
Valve rotors
Finish
Lever action
Water key
Mouthpiece
YHR-667VL
F/Bb
12mm (0.472")
ML
Fixed
Yellow brass
4
Nickel silver
Hollow
lacquer
String
Yes
30C4
YHR-667VS
Detachable