B â™ pipe. The valve system is 3 pistons. Bell is yellow brass diameter 254 mm, bore size 14.5 mm, silver plated finish. First adjustment finger hook.
B â™ pipe. Valve system is 4 pistons. Bell has a yellow brass diameter of 280 mm, a bore size of 14.5 mm (first to third) / 15.5 mm (fourth), clear lacquer finish.
F tube. The valve system is 3 pistons. Bell has a yellow brass diameter of 268.5 mm, a bore size of 11.73 mm, silver plated finish. Mouthpiece adapter (for horn) included.
B â™ / Convertible model. The valve system is 3 pistons. Bell is yellow brass diameter 280 mm, bore size 14.5 mm, silver plated finish. Two blowing pipes
600 series B â™ pipe. Bell has two yellow brasses 214 mm in diameter, the outer tube is yellow brass, the inner tube is Western white, the bore size is medium mesh tube 13.34 mm, gold lacquer finish
B â™ pipe. The valve system is 3 pistons. Bell is yellow brass diameter 257 mm, bore size 12.0 mm, silver plated finish. First adjustment finger hook.