Clark W Fobes NOVA Series Bb Clarinet Mouthpiece CF+ Facing: Medium Material: Hard Rubber Tip: 1.08 mm / .043 Designed with a Chedeville style baffle, the Nova is available in Clarks most popular CF+ facing (5RV equivalent) and 3L facing (B45 Lyre equivalent) Ideal for the advancing student, the Fobes NOVA Bb clarinet mouthpiece employs many features only found on $200