JK 02EM R.F. French Horn, Mouthpiece for French Horn, Ralph Ficker Signature Model, Ralph Ficker is among others horn player of the Philharmonic State Orchestra Hamburg, Mouthpiece bore: 4.3 mm, Outer diameter: 27 mm, Inner cup diameter: 19.0 mm, Cup depth: Medium shallow, Silver-plated, The M-series is characterised by a radiant tone with bright timbre, which is achieved by a flatter, rounder cup