Thomann BR 604 Baritone Horn, Bb Baritone Horn, 4 Perinet valves, arrangement 3 + 1, Bore: 12.8 mm, Leadpipe: Gold brass, Body: Brass, Outer slides: Nickel silver, Diameter of the bell: 232 mm, Height: 58 cm, Lacquered surface, Mouthpiece and lightweight case included