Hans Hoyer 6801GA-L, F/Bb Double Horn, Conical rotary valves with 3B linkage system, Nickel silver valve casings, Long tuning slide, Expansive sound, Nickel silver inner and outer slides, Bell: Ø 310 mm, Bore: 11.90 mm, Gold brass leadpipe, Fixed thumb hook, Adjustable thumb lever, Engraved valve cover, Coated with a high-quality lacquer, Detachable bell, Completely made of gold brass, clear lacquered, Incl. mouthpiece and case, Made in Germany