YSL-871/872 Alto Trombones

YSL-871 YSL-872
Key Eb Eb/D
Bell Material Yellow brass Yellow brass
Bell Diameter 181.8mm (7-1/8") 181.8mm (7-1/8")
Bore Size Dual: 11.95-12.45mm (0.47-0.49") Dual: 11.95-12.45mm (0.47-0.49")
Outer Slide Material Nickel silver Yellow brass
Inner Slide Material Nickel silver Nickel silver
Finish Clear lacquer Clear lacquer
Mouthpiece SL-48AS SL-48AS
Case Included Included