Shires K Series SHRK20 Double HornSHRK20 The K20 horn provides a balanced, resonant playing experience that adapts naturally to the musician. Its Geyer wrap design blends warm tonal depth with the stability and control needed for continued growth. Featuring a handspun yellow brass detachable flare bell, the K20 delivers a colorful, projecting voice with smooth transitions between registers. Rotax rotary valves with mechanical linkage offer dependable, precise action, allowing