The C.G. Conn Symphony 36H Alto Trombone has the same relative slide positions to the tenor trombone.
It also features a unique Bb rotor, offering added facility in difficult passages.
Bore: .491/.500 (12.47/12.70mm)
Bell diameter: 7 (178mm)
Bell: Yellow brass
Outer slides: Brass
Inner slides: Chrome-plated
Bb rotor attachment
Case: Deluxe woodshell