Behn™ EVO™ bells and barrels for Bb, A, and Eb clarinets are built using our world-class CNC production system.  Beautifully constructed from our dimensionally stable AND super resonant Behn™ Rod Rubber II.  They do the work of providing proper resonance, making it easier for you to play. Just relax and let your BEHN bell and barrel do the work of centering your sound for you!  You'll achieve more sound and a better sound, with less effort.