VINCENT BACH Trumpet Mouthpiece 6C Rim Pink Gold This is a mouthpiece from BACH, a standard trumpet manufacturer. The size is 6C, and the rim is pink gold. There are slight scratches on the shank, but overall, it seems to be in good condition. The 6C is a mouthpiece that can be used in any genre. The pink gold plating gives the sound a softer quality and an increased resonance.