Kanstul CCT 923 S Eb-/D- trumpet, Custom Class Series, long bell version, Ø 11,65mm bore size (.460"), Ø 123,5mm bell diameter (4- 7/8"), brass bell, 2 amado waterkeys, metal valve guides, hand- fitted monel pistons, 1st slide saddle, ring on the 3rd slide and stop screw, two sets of slides incl., silver plated, incl. deluxe Gladstone case and mouthpiece