Bach Silver Plated Small Shank Trombone Mouthpiece - 350

- 3 Medium deep 26.26mm Medium wide, well rounded. Extra- large cup for players with a robust embourchure. - 4 Medium 26.00mm Medium wide, well rounded. Very large cup; principally used by players having a healthy, strong embouchure. - 4C Medium shallow 25.75mm Medium wide, well rounded. Large cup with a brilliant tone. Requires a powerful natural embouchure. - 5 Medium 25.50mm Medium wide, semi flat. For players with a good, natural embouchure. Rather large cup. Produces a full, mellow, sonorous tone. - 5G Deep 25.50mm Medium wide, semi-flat Same as No. 5 except for throat and backbore. (Same as 5G only with small shank.) - 5GB Deep 25.50mm Medium thin, very well-rounded Same as No. 5G except for rim. (Same as 5G only with small shank.) - 5GS Medium 25.50mm Medium wide, semi-flat. Same as No. 5 but with larger "G" throat and 420 backbore. - 6 Medium 25.50mm Medium wide, well rounded. Fairly large cup. For players with a strong embouchure. Full, solid, mellow tone. - 6 1/2A Medium deep