61\/2AL Silver Professional Trombone MouthpieceDescription:Name: Trombone Mouthpiece (not Euphonium mouth)Length:approx.8.1cmProduct size: 8*3.8*3.8CMMouthpiece Outer Diameter: 1.1cmMouthpiece Inner Diameter: 0.9cmConnector outer diameter:approx. 1.1cmSpecification: General purpose、For most of the trombone(the diameter of the mouth is about 200MM、 the inner diameter of the pipe is about 12.7MM)、Not sure can use for all the tromboneProduct material: MetalProduct net weight: 0.154KGGross weight: 0.165KGPackage size: 9.5*4*4Package Include:1x Trombone Mouthpiece