Dukoff Metal Tenor Saxophone Mouthpiece D9 Mouthpiece with Silverite metal construction that gives it a bright, edgy tone with depth and guts for an exciting sound Dukoff's Tenor Saxophone mouthpieces feature construction from Dukoff's custom Silverite metal This contributes to a bright "edgy" tone with depth and guts for an exciting sound The shank of the mouthpiece has been elongated to get a better grip on the cork when tuning The insert for the teeth is slightly contoured for more comfortable playing