This mouthpiece includes a Rovner Cap and Ligature!
Tip Opening: 2.0mm
The size of EEb Contra Alto Clarinets is not consistent among manufacturers, and you may need to order a BBb Contra Bass mouthpiece to fit your instrument. Please check the tenon dimension before ordering.
EEb tenon diameter: approx. 32mm
BBb tenon diameter: approx. 35mm