All WEINERMUSIC instruments are serviced by Mark Kasten,

Key of Bb
.459" medium-large bore
5 bore choices (M - .453", ML - .459", L - .462", XL - .468", MLV - .453/.459")
4.8" one-piece hand-hammered yellow brass with #43 taper
Monel pistons
1st valve thumb saddle
Fixed 3rd valve finger ring with slide stop
25C mouthpipe
Finish: Clear lacquer