B-Stock, Maxton flexilis, model "KARLHEINZ" (based on D8) mouthpiece for Bb- Clarinet with German System, pointed, open-minded, dedicated and expressive tone, made of synthetic rubber, dimensionally stable material, darker and warmer sound than plastic, with O-rings, tip opening: 1,22 mm, facing length: 28 mm, diameter: 15 mm, recommended reeds: Vandoren White Master Traditional/German Model, Steuer German Cut, Peter Leuthner german cut, Pilgerstorfer Classic-breit, Solist-dt., B-Stock with full warranty, may have slight traces of use