Warburton Trumpet Mouthpiece Backbores (7* Backbore)

Warburton mouthpieces have been designed with total flexibility so that the player can "build" his ideal mouthpiece on the spot. There are 7 cup styles available in each of the 8 cup sizes (57 different cups) and then there are 56 different backbores to fit most of these cup sizes. This gives the...