Hans Hoyer 801A-L, F/B Double Horn, Coated brass body, Detachable bell, Conical rotary valves with 3B ball bearing linkage, Long tuning slide, Inner- and outer slides from nickel silver, Bell: Ø 310 mm, Bore: 11.90 mm, Gold brass leadpipe, Adjustable finger hook, High quality lacquer finish, Incl. Case, Made in Germany