Yamaha YTR-6345 GS, Bb Trumpet@+The YTR-6345GS can be found anywhere, from the studio to big bands, wind orchestras, chamber music as far as symphony orchestras. The YTR-6345G features a wide bore (L) and a gold brass bell, giving it a warm, full tone and a slightly better assertiveness than the YTR-6335. It is particularly suitable for musicians who need a versatile instrument that fits well into every line-up and instrumentation., Professional class, Normally weighted Bb trumpet, Gold brass bell, Bell Ø: Approx. 123 mm, L Bore: Approx. 11.73 mm, Incl. case and 14B4 mouth piece