Corrado Signature Bb Clarinet Mouthpiece Maestro Corrado Giuffredi knows no bounds and this mouthpiece proves it. A traditional bore design with a more open/long facing, the Corrado Signature is a gorgeous take on a flexible centred tone and is crafted on marbled green hard rod rubber. With playable ease and smoothness across registers, this model yields an altissimo that produces wonderfully strong overtones and rich character.  Tip Opening: 1.20mm. *Tip from Hawkins: To re-lubricate signature mouthpiece o-rings, use a drop of almond oil or a tiny bit of cork grease on the inner wall of the barrel top tenon to improve ease of use. Includes One Corrado Signature Bb Clarinet Mouthpiece with three medium-sized self-lubricating O-Rings, one small flathead screwdriver and one mouthpiece patch. All Backun Signature Series Mouthpieces come with medium-sized O-Rings installed, which fit a majority of clarinet barrel tenons. “Like great vino or balsamico, it has taken years for this mouthpiece to become what it is. Balanced and vibrant, with comfort throughout the entire range. I hope you love this mouthpiece as much as I do.” - Corrado Giuffredi Comparison Chart