"Michael Rath R9 Bass Hagmann, Bb/ F/ Gb/ D Bass Trombone, Bore: 14.27 mm/ 0.562"", Hagmann valve section, Bell size Ø: 241.30 mm/ 9.5"", Red brass bel, Outer slide: Brass, Brass tuning slide, Mouth pipe 9, Clear lacquer finish@+*Note:* Mouth piece...