YSL-891Z YSL-891ZD
Key Bb Bb
Bell Material Yellow brass Yellow brass
Bell Diameter 204.4mm (8") 204.4mm (8")
Bell Type Fixed Detachable
Bore Size M: 12.9mm (0.508") M: 12.9mm (0.508")
Outer Slide Material Yellow brass Yellow brass
Inner Slide Material Nickel Silver Nickel Silver
Finish Gold lacquer Gold lacquer
Mouthpiece SL-45C2S SL-45C2S
Case Included Not Included