Bach Commercial Series Modified V Cup Trumpet Mouthpiece in Silver 3MV Commercial Series Modified V Cup Trumpet Mouthpiece in Silver 3MV "The Bach Commercial mouthpieces are designed for everyone from the aspiring lead trumpet player to the seasoned veteran who is looking for something new Available in two cup designsa"shallow cup or modified V cup, these mouthpieces are designed to give the flexibility to get the right feel for you All models come designed with a #27 ( 144a) throat, and a modified comfort rim with a flatter top