YAMAHA TR-14C4-GP Mouthpiece for Trumpet Custom Series Gold Plated Yamaha Price: ¥14,850 Features a rim shape that facilitates easy transitions between notes and offers flexibility. Favored in wind bands and orchestras, allowing for a large volume of sound. #YAMAHA #CustomGP14C4TrumpetMouthpiece Used only once for a trial, so it's in near-new and very clean condition. I'm selling it because it didn't suit me.