Riedl ring for clarinet lyre, nickel, diameter: 29 mm.
Riedl ring for clarinet lyre, nickel, diameter: 32 mm.
Riedl ring for clarinet lyre, nickel, diameter: 33 mm.
Riedl ring for clarinet lyre, nickel, diameter: 34 mm.
Riedl ring for clarinet lyre, nickel, 2-piece model, diameter: 33 mm.