- Challenger II GM series - Brass body with clear lacquer - 11.66 mm ML bore - One-piece hand-hammered gold brass bell Ø 122 mm - Monel valves - Nickel silver outerslides - Two water keys - Slide stop screws at 3. slide - Finger buttons with real mother of pearl inlays - Incl. mouthpiece and prestige case - Made in Germany EUR 2549.00 - See more - Buy online