B&S 3136TC-L Challenger C-trumpet, Thierry Caens bell, brass body, 11,73 mm (0.462") bore, handhammered, lightweight, one piece Ø 122 mm (4.782") goldbrass bell, monel valves, nickelsilver outerslides, 3rd slide stop screw, 2 waterkeys, lacquered, incl. mouthpiece and prestige case