Manufacturer: Warburton Flugelhorn Mouthpiece 5FLB One-piece model Silver-plated finish No original box Used a few times since new and carefully stored for a while, so it's in good condition overall with no plating wear or major scratches. The size feels like it's between a Bach 3 and 5. Throat size: 4.09mm It's easy to play, and the tone is mellow, full, and warm, especially among flugelhorn mouthpieces. The cup design isn't too deep, so I think it's relatively easy to control from low to high notes. Being a one-piece model, it feels like it has higher vibration transmission efficiency compared to two-piece models. This mouthpiece is quite expensive when new and takes a long time to be delivered. Moreover, it's a popular, versatile size, so it's appealing because it can be used in all genres, from brass bands to solo performances, pop, and jazz. It's convenient to have one. Recommended for those who don't feel comfortable with Bach, Yamaha, or other company's mouthpieces.