YAMAHA Mouthpiece Lot – 11C4 ×2, 7B4 ×2 – Trumpet – Used (4 pieces) #2196
The 11C4 and 7B4 are popular models for both students and advanced players. The 11C4 is known for its balanced tone and ease of play, while the 7B4 provides a slightly brighter sound with a narrower cup.