Dukoff D Series Metal Soprano Saxophone Mouthpiece D6 Mouthpieces by Bobby Dukoff feature innovative baffle designs and are handcrafted of Silverite, a special alloy developed for its brilliance and resonance They are designed for the professional and used by many top artists, especially in the jazz field, who swear by them The "D" chamber combines that bright, edgy sound with the depth and guts to make sound exciting Mouthpieces by Bobby Dukoff feature innovative baffle designs and are handcrafted of Silverite, a special alloy developed for its brilliance and resonance